Rust-Ring-Be-Gone

Cans often leave annoying rust-rings on bathroom ceramics. The culprit in my particular case was a shaving-foam canister. *This* clip has saved me a lot of trouble.

Check out this YouTuber's build and review of the ring! :) https://www.youtube.com/watch?v=FzyJQTmmqSw

With a ferro-based canister, rust-rings need three more ingredients to form -
1. water,
2. time, and
3. contact.
This minimalistic clip helps by
- adding distance between the can and the ceramic (i.e. no physical contact)
- adding slopes and drainage, so that water doesn't stagnate under the canister
- adding ventilation-gaps so that any water that does get under shall evaporate easily

As an added bonus, it might make your canisters 'stackable' ;)

I've used mine on a Gillette canister having base-OD of 57.6mm and cap-OD of 55.8mm. You can measure your particular canister and scale the model accordingly; the dimensions are pretty forgiving. For fine-tweaks (after printing the model), if needed, dip it