ThinkGeek Kids' Brick Construction Shirt

Innovative t-shirt features a built in plastic baseplate to build on with your construction bricks of choice
Create flat designs, or go crazy with 3D constructions and mechanical contraptions
Compatible with LEGO™, PixelBlocks, Mega Bloks, and K'NEX Bricks™
You need to supply your own bricks or blocks, none come with the shirt
Front baseplate removes for easy washing