1. I want a simple way to do so
2. I want a smooth and compact design
3. holding many keys and a small army knife
1. get a sheet of acrylic sheet.
2. Bend it to C-shape with hot blow gun or something like that....
3. Drill holes, add washers and spring (refer to the following photo)
4. tight the army knife and that's all !!!
Advantage of this method :
1. Easy, stylish and cheap
2. Very compact
3. The spring force the keys to stay in the pocket.
4. Can hold quite a lot of keys.
1. U can use leather, metal sheet or any other substance to make the organizer (even a cardboard)
2. the spring is taken from shampoo bottle.