This is my design for a Film Stock Reminder Keychain. This one does NOT need to be glued and doesn't need support unless you want to deal with them. I printed this on my printer which is not tuned for bridging, and it did sag... BUT that actually became useful to hold in the "insert".
The main part is the "holder" itself. I have also added an "insert" file for the film stock I have outside its box. You can see I wrote on mine with a sharpie, but you could just as easily put a piece of tape on the insert of the holder itself when you don't have the cardboard box to put into the holder.
film_stock_holder.STL | 116.7KB | |
film_stock_insert.STL | 8.5KB |