Simple case for USB CAN bus adapter
with holes for clear fillament as light pipe

this was created in onshape free.. so it is publick if you need to change anything
https://cad.onshape.com/documents/787e5d529dc72f9143c3109e/w/b901e1547cb356fc12a9337a/e/211638da95470e262a2602c5?renderMode=0&uiState=6909c6489753712d87e871c1