Hot Dealsin Building Sets
Limited time offersCA
25% off
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BEST DEAL
LEGO Creator 3 in 1 Haunted Mansion Building Toy for Kids - Halloween Building Blocks & Learning Toy for Girls & Boys, Ages 9+ - Build a Haunted House, Train, or Ship - Gift for Birthdays - 31167
$89.98$119.99Save $30.01
Deal runs: 10/17/2025 - 11/10/2025
26% off
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BEST DEAL
LEGO Marvel Iron Man MK4 Bust - Building Kit for Adults, Ages 18+ - Includes Iron Man Minifigure - Collectible Model for Super Hero Fans - Gift for Men and Women - 76327
$59.4$79.99Save $20.59
Deal runs: 10/27/2025 - 11/10/2025
12% off
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BEST DEAL
Sillbird Robot Building Kit with Remote Control STEM Gifts for Kids Boys Age 8-12, Coding Technic Robotics Toy for Birthday - Buildable 5in1 Models with 488 Pieces - Orange
$61.59$69.99Save $8.4
Deal runs: 10/27/2025 - 11/10/2025
10% off
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BEST DEAL
Magnetic Tiles, 135PCS Magnetic Building Blocks with 2 Cars, Large Magnet Building Set,STEM Sensory Educational Toys Gift for Toddlers Kids Boys Girls.
$40.94$45.5Save $4.56
Deal runs: 10/29/2025 - 11/12/2025
21% off
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BEST DEAL
WMXDU Mini Magnetic Tiles, Magnetic Building Blocks with Travel Case STEM Learning Building Blocks, Magnet Tile Construction Stacking Block Boys Girls for Kids Ages 3+ (Family Edition)
$33.95$42.97Save $9.02
Deal runs: 10/20/2025 - 11/3/2025
17% off
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BEST DEAL
BseSparklion 5-Cylinder Radial Engine Building Set, Build Your Own Mini Military Plane Engine Model Kit That Runs, Compatible with Lego WW2, STEM Toy Gifts for Adults & Kids Boys 8-14 (863 PCS)
$49.99$59.99Save $10.0
Deal runs: 10/20/2025 - 11/3/2025
20% off
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BEST DEAL
TWERF Party Favor for Kids - 30 Pack Mini Animals Building Blocks Set, Goody Bags Stuffers, Small Toys for Kids Prizes, Birthday Party Favors Return Gifts for Boys Girls Age 6-12+
$23.99$29.99Save $6.0
Deal runs: 10/29/2025 - 11/12/2025
20% off
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BEST DEAL
LEGO Star Wars Darth Maul Mech Kids Toy - Building Toy with Pretend Play Lightsaber - Birthday Gift Idea for Boys and Girls, Ages 6+ - Collectible Decor for Fans of The Clone Wars - 75411
$14.4$17.99Save $3.59
Deal runs: 10/27/2025 - 11/2/2025
12% off
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BEST DEAL
LEGO Star Wars Death Trooper & Night Trooper Battle Pack Kids Toy - Building Set for Pretend Play - Ahsoka Series Model Kit for Boys and Girls, Ages 6+ - Birthday Gift Idea for Movie Fans -75412
$22.08$24.99Save $2.91
Deal runs: 10/27/2025 - 11/2/2025
20% off
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BEST DEAL
BeepZipp Purple Roses Botanicals Bouquet Building Set, Artificial Flowers Blocks Kit Compatible with Lego Flowers, Halloween Christmas Decorations Gift Building Set for Adults Teens
$39.99$49.99Save $10.0
Deal runs: 10/27/2025 - 11/10/2025
21% off
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BEST DEAL
Reobrix 791 Porsche 911 GT3 Toy Car Building Blocks, Model Car Kit for Display and Collectible, Race Car Building Toy for Boys and Adults, Compatible with Lego, 338 Pieces
$24.0$30.39Save $6.39
Deal runs: 10/27/2025 - 11/2/2025
10% off
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BEST DEAL
Sillbird Owl Animal Flowers Building Toy Set, MOC Floral Collectible Model for Valentines Day Home Decor or Office Art, Birthday Creative Gifts for Adults or Teens Kids 8+ (1193 Pieces)
$62.99$69.99Save $7.0
Deal runs: 10/20/2025 - 11/3/2025
20% off
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BEST DEAL
Kids Building Blocks STEM Toys for 3 4 5 6+ Year Old Boy Girl, 300PCS Education Interlocking Discs Creative Building Blocks Preschool Toys for Kids Ages 3-5 4-6, Colorful and Safe Material for Toddler
$23.19$28.99Save $5.8
Deal runs: 10/27/2025 - 11/1/2025
10% off
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BEST DEAL
JLH Magnetic Blocks for Kids - 100 PCS Unicorn Magnetic Building Blocks and Cubes - STEM Montessori Sensory Toys for 3+ Year Old Girls Boys - Birthday Gift
$18.89$20.99Save $2.1
Deal runs: 10/30/2025 - 11/13/2025
10% off
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BEST DEAL
Mini Magnetic Tiles for Kids,Magnetic Building Blocks,Magnet Tiles Travel Construction Set with Storage Iron Box,Toddler Montessori Birthday Gift Toys for 3-8 Year Old Boys and Girls
$26.09$28.99Save $2.9
Deal runs: 10/27/2025 - 11/1/2025
13% off
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BEST DEAL
Vintage Swing Clock Building Blocks Set – 751 PCS Real Working Mechanical Clock with Alarm, Moving Pendulum & Rotating Dial, Retro Steampunk Decor Gift for Adults & Teens, Compatible with Lego Sets
$37.23$42.99Save $5.76
Deal runs: 10/27/2025 - 11/10/2025
36% off
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BEST DEAL
City-Themed Magnetic Building Blocks - Portable & Travel-Friendly Set for Ages 3+, STEM Learning Construction Kit with Storage Box
$18.44$28.99Save $10.55
Deal runs: 10/28/2025 - 11/11/2025
10% off
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BEST DEAL
Soolio Rose Flower Bouquet Building Set for Adults, Anniversary Birthday Gift for Women Teen Girlfriend, Artificial Floral Botanicals Collection Gothic Decor for Home or Office (414 PCS)
$38.69$42.99Save $4.3
Deal runs: 10/26/2025 - 11/9/2025
14% off
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BEST DEAL
OZJAY Magnetic Blocks, 150 PCS Fire Forest Magnetic Building Blocks Toys for Kids STEM Learning Magnetic Cubes Fun Sensory Stacking Toys for Boys & Girls 3+ Christmas Birthday Creative Gift
$29.99$34.99Save $5.0
Deal runs: 10/28/2025 - 11/11/2025
22% off
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Best Deal
MEGA Halo Model Replica Building Toy, 343 Guilty Spark with 609 Pieces, Lights & Sounds, Build & Display Set for Collectors, Gift Ideas for Adults
$54.0$68.93Save $14.93
Deal runs: 1/1/1970 - 1/1/1970
15% off
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BEST DEAL
Sillbird BOTW Glowing Master Sword Building Blocks Set, TOTK Decorations with Dragon for Link Fans, Birthday Toys Gifts for Kids Boys Girls Ages 8-12 Year Old (677pcs)
$55.24$64.99Save $9.75
Deal runs: 10/27/2025 - 11/10/2025
30% off
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BEST DEAL
PicassoTiles 30 Piece Mini Size Magnetic Tiles Sensory Magnet Toys Diamond Series Construction Building Blocks Set STEM Learning Travel Size Educational Toy for Kids Boys Girls Toddlers Age 3+ PTM30
$17.49$24.99Save $7.5
Deal runs: 10/27/2025 - 11/3/2025
15% off
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BEST DEAL
Sillbird Magical Creatures Building Set for Kids Age 10+, Buildable Flower Animal Toy for Home Decor, Birthday Gift Idea for Boys Girls Teens and Adults (1212 Pieces)
$59.49$69.99Save $10.5
Deal runs: 10/28/2025 - 11/11/2025
10% off
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BEST DEAL
JOJO&Peach Night Dragon Building Sets for Boys Aged 10+, Buildable Toy Kit for Home Décor & Display, Birthday Gift for Teens, Adults(940 Pieces)
$62.99$69.99Save $7.0
Deal runs: 10/31/2025 - 11/14/2025
10% off
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BEST DEAL
Sillbird Dragon Building Kit with Remote Control STEM Gifts for Kids Boys Ages 8-12, Technic Buildable Coding Toys for Birthday with 590 Pieces
$58.49$64.99Save $6.5
Deal runs: 10/31/2025 - 11/14/2025
19% off
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BEST DEAL
OundarM Mini Chinese Classical Garden Building Blocks Set, Cherry Blossom Botanical Collection Building Set for Adults, 14+ Teens, Home Decor Accessories (2350 Pcs)
$29.99$36.99Save $7.0
Deal runs: 10/30/2025 - 11/6/2025
10% off
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BEST DEAL
Building Toys for Girls Age 6 7 8 9 10 11 Year Old, 568pcs Princess Castle Friendship Educational STEM Construction Toys Set for Kids Building Blocks Kit Gifts for Birthday Christmas
$23.39$25.99Save $2.6
Deal runs: 10/28/2025 - 11/11/2025
20% off
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BEST DEAL
BeepZipp Unicorn Building Toys Set, 6 Cute Unicorn Toys Compatible with Lego Sets, Party Favors for Kids Goodie Bags Stuffers Gift for Girls Boys 6 7 8 9 10
$23.99$29.99Save $6.0
Deal runs: 10/27/2025 - 11/3/2025
10% off
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BEST DEAL
112 Pcs 3 Year Old Girl Gifts,Toddler Flower Garden Building Set Stem Toys Gardening Activities Ideas DIY Crafts,Best Stacking Game for Daycare Kindergarten Family 3 4 5 6 7 Years Kids (112 PCS)
$35.99$39.99Save $4.0
Deal runs: 10/25/2025 - 11/8/2025
20% off
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BEST DEAL
STEM Building Toys for Kids, Educational Building Blocks, Remote & APP Controlled 2in1 RC Car/Construction Robot STEM Kit, Science Learning Car Building Sets for Boys Girls 8-16 Old (Dark Blue)
$39.99$49.99Save $10.0
Deal runs: 10/30/2025 - 11/13/2025
Deals are time-limited. Prices and availability are accurate as of the date/time indicated and are subject to change.