I bought this IKEA LIDKULLEN chair to use when playing VR, but its legs are small and hard so I designed this protector to protect my wooden and tatami floor from damage.

It's in 2 parts:
Inner shell printed in PLA: if you don't have TPU or afraid to print in TPU, just use this and it would at least enlarge the surface area and lessen the damage. You can print this in TPU and use it as is too.
Outer shell plate printed in TPU: TPU print slow so I want to print them as little as possible.

It can snap on, but I used double sided tape to make it more secure.