Prusa MK2S MK2.5 and MK3 Half/Full Bear Anti-vibration feet

A foot to be used with squash balls and any 2020,2040,3030 extrusion frames.
It uses an M5 screw to attach the corner of a frame.
I used 2 dot squash balls with excellent results.

Print the feet wide brim side down i.e. the side with a flat edge.
You'll only need supports from the bed to support the middle if you want a clean finish.
Mine printed fine without supports, with an uneven finish inside but as you don't see that - i wasn't fussed.