I've had before a scrathing post for cats, that had an invisible swatch. If I remember correct, visible swatch was red and white checkkers textured.

You could put the invisible scratching post on the wall or on any other object making it the scratching post (cats scratch the invisible one, not the wall or other object).

Does anybody else remember this object and where I could find it?

Literally spend hours searching before I posted. Just Found the object.

https://mspoodle1.tumblr.com/post/1...at-extras-socks