Hi Everyone;
@twistedsymphony did an astonishingly awesome CPS3 bios cart and released here
https://www.thingiverse.com/thing:1690059
Edit; Updated to "v3" based on feedback and advances in printer tech - strongly suggest you use the file
"CPS Case remix V3.zip" instead of the older versions. Leaving V1 and V2 here just in case.
If you want one of these then bit-district is the place to get them - I lust after the mirror finish he can produce, but alas that kind of manufacturing it is way beyond my capability.
https://bit-district.com/arcade.html
My OCD was acting up and I wanted a spot for the labels, as well as for the cart to be labeled with the version and features of the bios so I didnt forget, so I adjusted as follows

If you want an epic ultrabios sticker like this one I think
@djsheep may still have a few

Remixed STL's are attached with kind permission (CPS3 cart revised.zip)