I got this air duster on amazon and it didn't balance well, so I decided to make a base so it can stand up without falling at the slightest touch. Now it's impossible to knock over by accident(unless you hit it really hard of course)

Printed at .2 layer height, 15% infill, PLA, at 60mm/s speed.

I printed it and it was just a hair loose, so I put a small strip of filament on the inside to make it snug. I just cut a small rectangular strip from a failed first layer I had laying around, so if it doesn't fit your perfectly this method worked out for me. I added a picture to show what I'm talking about. 

The inside diameter is 48mm, so if the base to your air duster is different just do the math and scale accordingly! Post your make, I'd love to see em!