I adore Keller Lab's HomeRacker system and wanted to make some additions to the ecosystem.

This one is simple, I wanted some simple feet I could print in TPU. Then when I was modelling the basic square feet (named the boot in the files) I thought it would be fun to do some actual FEET with toes to add some whimsy to my grab and go rack. 

I printed mine in TPU to add LRF Support* to my system but if you don't care about the softer feet aspect you could print it in whatever material you wish to provided your printer supports it, I'm not your Mother, go crazy (print it on a chocolate printer for maximum uselessness! If you do share pics!).

*Little Rubber Feet