I'm suprised these didn't already exist, but now, finally, there are Tetris Cookie Cutters. Tetrimino-shaped cookies are not only fun to stack and gobble up, they also save valuable space on a cookie plate... unless you stack them wrong. These fun stainless steel cookies cutters come in a set of all seven Tetrimino shapes and are an officially licensed Tetris product. Way cooler than the usual Pac-Man round pellet-shaped cookies.
Tetris Cookie Cutters