Blue Baseplate for Lego | Building Brick Baseplate | Blue Base Plate
LEGO Classic Green Baseplate 2304 Supplement for Building, Playing, and Displaying Creations, 10in x 10in, Large Building Base Accessory for Kids and Adults (1 Piece)
1 LEGO Plate 16X16 part 91405 Baseplate/building platform pick your color | eBay