Here are a number of Canon compatible lens and body caps. Be sure to reference the file names in the print profiles to designate which version you are looking for (basic body cap, TC front cap, basic rear cap, RF vs EF, etc.). I believe they will work for EF-S lenses as well, but I was not able to test. But note if EF-S lenses, the key indicating mark is not aligned for the EF-S alignment mark, a little trial and error may be needed to fit it on, as far as alignment.

Note: The bed sheet will determine the flat face's texture of the print. You will need to use the special plate for the special texture. Otherwise, it will be plain. It is pictured with the 3D Effects Diamond sheet.