Hollow display plinths. Or cups. Take your pick.
Clamp, screw, or adhesive mounts.
Say how much it holds; the bowl works itself out.
Organizer trays with mergeable compartments and finger scoops.
Pour things into other things.
Everyone’s least favorite simple machine.
Enclosures with friction lids, screw posts, standoffs, vents, and holes.
Also does blank plates.
AKA Discs and Tubes.
If you need your shaft to slide or rotate… this isn’t going to get any better if I keep going.
Protect your holes.
Universal rectangular mount, aka U-bracket.
Download your own copy of this utility, and it works offline forever.