I own several of the original Fidget Cube™ (by Antsy Labs) and I am very pleased with them. They help me a great deal to focus and deal with symptoms of attention deficit. There is very little wrong with the Fidget Cube™. This project is not affiliated with Antsy Labs in any way nor is it endorsed by them. This is not a thing to replace the Fidget Cube™ or draw your attention away from it. If you are interested in this model, you should probably own a Fidget Cube™. They are not very expensive, too.

My (or my colleague's) only grief with the Fidget Cube™ is, that is causes noises. Clicking away pressing buttons and flipping switches in a quiet environment may help me focus but annoys the people around me. I was trying to use the Items I have in a quiet manner but everyone who has used a clicky ballpoint pen to calm down knows how hard it is sometimes to resist the urge to click it. I tried to come up with a tool that I could use to play with without causing noises and this is it.

It features 6 different surfaces that can be explored by the fingers. Printed in TPU, the little dots can be pressed down a little. There is a hole from left to right that can be used to poke around in it with a pen or something. Each side features a centered element that Allows to grab the cube on opposite sides and turn it

Top: Smooth Recess with a bump in it - no need to destroy your speakers anymore
Front: Five differently sized holes
Left: Hole - also 8 little dots in 2 different sizes. Some slightly offset
Right: Hole - also the 4 corners are protruding out of the cube and form button-like features
Back: Six-sided polygon recess in four steps
Bottom: Shape made out of a few non intersecting straight lines and a dot in the middle

The original Fidget Cube: https://www.antsylabs.com/products/fidget-cube - buy one. They are awesome. (not an affiliate link)