This is a deck box I made for my magic the gathering commander deck. I wanted a treasure chest. It can hold a double-sleeve commander.

To finish the hinge just place a filament a piece of filament through the holes.

I wanted to make sure removing the deck was easy and convenient, this is why I added a removable component. It slides in and out of the treasure chest.

I used 6 magnets for extra hold. You could probably get away with 2 in the lock part.

I used the 15mm x 2mm ones from this set. (I did notice that they actually measure at 15mm x 1.6 mm)

https://www.amazon.com/gp/product/B09WZTSQ9Y/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1