I needed this size for a toilet seat that frequently comes loose, and to disassemble the head of our Miele vacuum for cleaning. I resized the coin slot and moved it forward so the maximum coin is exposed while still having a reasonable ‘shoulder’ to hold it in the slot. Bolts remain the same as the original.

The design is in Onshape:

https://cad.onshape.com/documents/4e04ca35274d3b3d5b023ae7/w/0a196aca16e56a493e98d0da/e/cdff1415df066b47d1f7bed7https://cad.onshape.com/documents/4e04ca35274d3b3d5b023ae7/w/0a196aca16e56a493e98d0da/e/cdff1415df066b47d1f7bed7