I have a few fidget toys on my desk, but they all make noise. Clicking and scraping and what not. So I made one that doesn't make noise. It's six faces are:

1) Raised circle you can run your finger around and around and around
2) Raised bar you can run your finger back and forth over
3) Raised dots that you can touch in any order and repeat it over and over
4) A depressed spot for rubbing like a worry stone
5) Pointy points for touching and feeling
6) Pointy valleys for touching and feeling

My hands are big and it works great for me, but my wife and my daughter both said it was too big, so you might want to scale it down before you print it.