PiCan by xbst_Isik

This is a super neat option to a common problem by xbst_Isik.  This board comes with a preprinted case that will fit the PiCan board and is preflashed with the firmware.  All the credit on this goes to Isik. 

A compact, USB drive shaped USB to CAN adapter, primarily intended for 3D printers running Klipper firmware.

More info can be found here: PiCan