I am building a rep-strap and it can't print parts yet, I needed a method of mounting XYZ limit switches. I tried to make a couple of designs in MDF but the wood split.
I hit on just using a tie-wrap to clamp the switches to the smooth rods - plain, simple, no printing involved, so i guess it's an Anti-Thing.
Also in the picture you can see my LM8UU bearing holders. These are 15mm pipe clips from the plumbing section of any UK hardware store. By chance LM8UU bearings are a perfect snap fit :)