Simple snap fit ring that raises the can of the shelf to mitigate rust rings forming below it.

Tested with a Gillette can but should work with most brands.

Project File: https://cad.onshape.com/documents/908217f20b184514c0d7f912/w/53f9087c931910ae014834f7/e/9975be2180ca72cc1545cbe6?renderMode=0&uiState=64c38c493e26ad29c367dfd2