So, I made this because whenever I bring matches for camping, they get flat like paper.
I was tired of picking them from my backpack one by one, so I designed this simple model of my design for Match Box.
I am not very good at 3D modeling, yet, however, I think it should work. 

The inner part should have enough space to fit the outer part, without issues, yet not to move freely. 

Can't be sure, cause my printer is on holiday so I can't print it.

Please give me feedback if you print this, so I can improve the design.

Note: You need to glue the part that makes the matches fire to the sides. Without it, the matches won't light up