Cartridge storage

If the orginal box is not available, what type of container can be used to store a spare cartridge? I'm thinking it has to have something to keep the cart from rolling around and damaging the cantilever/stylus.
Jewelry box. Make a internal form of stiff card to just fit inside the box with small flaps to (left, right) down,and flaps (top bottom) to fit up to box top up.
Then screw the cart to the form you made.. place it in box. good to go anywhere not going to move around in there.
Could also do this with some wristwatch boxes. Small over the counter medicine booxes will do.