Prusa i3 MK3 Sorbothane or Felt Feet

**THIS IS AN OLD DESIGN** that I am keeping up to point to better things. These have been superseded by steelfab's design here: https://www.thingiverse.com/thing:3082188 - in his words in chat, "OMG - it is just like Brigandier's and jltx 's feet (for the MK3) had sex. Not tested yet. But I preferred Brig's method of attaching them and JLTX's design and low profile." Thanks to everyone who has liked and used this design, and thanks to steelfab for iterating on it and improving it!

**UPDATE**: