What are Tetris Monsters?

Lately I've been painting Tetris Monsters, or Block People as my nephew likes to call them. They enjoy zooming through space and stacking together in geometric patterns. I anticipate they'll evolve, but here's what I have so far...

I added this last one to my Society6 store. Society6 does on demand printing of art in different mediums, like shirts, mugs, pillows etc. However, their interface makes it hard to see all the options available for one piece of art. So, I've curated them for you to browse. Enjoy!

Tetris Monsters for Sale Society6

Here's a link to my store in case you want see more:
Nica Lorber's Society6 store