Over 5 lbs Lego Duplo, Mega Bloks, Tyco Building Blocks Lot Vtg & Current | eBay
21 of the best Lego Duplo sets for toddlers - Gathered
Amazon.com: Brickyard Building Blocks 177 Pieces Large Building Block Toys for Children Ages 1.5-5, Bulk Block Set, Compatible with Duplo (177 pcs) : Toys & Games
Lego Duplo vs Mega Bloks: Which Are Better for Your Kids?