Although, I guess “fun” is always implied when lasers are involved. I shouldn’t have even bothered.
Here are some things lasers are good for:
1) Organizing your kitchen.
2.) Clamping stuff
3) Holding worm gears
4) Showing up 16th century engravers
Anyway. I hope you’ve found this post informative, this has been an exhaustive list of everything that can be made with lasers.
I put the shelf rail clips on thingiverse if you’re interested, and I may put up the worm gear system, but it’s very loud and I don’t like things that are loud.