CB Mic Mount
CB Mic Mount & Inverse Attachment
CB Mic Mount: allows for the slotting of a standard CB Mic mount. This can be placed on a vehicle and should hold pretty solid. I used 15# double sided tape to hold mine and it hasn't come loose in the hot truck.
CB Mount Inverse: is the inverse of the mount and will slot into CB Mic Mount. There's some tolerance friction to help hold it firmly in place.
Both versions of the part could be remixed to have their mounting surface thickness reduced. I designed them with thicker surfaces to help with PLA's low heat tolerance.