My 11 year old tends to just place trash everywhere in the car. I drive a F series BMW (2014-2022 2 series) and there really isn't a good place to fixate a garbage/trash bin. I bought a trash bin off Temu (also available on Amazon/Aliexpress etc) for $7 CAD but this trash bin would just roll around in the back somewhere so I designed a clip/adapter of some to hold it in place just at the hump between the two rear seats. (This probably wouldn't work for a car where the back seat has 3 seats rather than 2)

I made the clip/adatpter so that the trash can can now be held in place by the pressure of the rear seating. The curved edges will prevent sharp points right onto the leather.

Hope this would help someone else in the future! :)

P.s. I used 80% infill but doesn't have to be. I just wanted it to be tougher as I assume my kid would probably kick it around.

Prusa

I3 MK3S

0.2

80%