I never ever warmed up to the little kit idea. Never found a practical use for all the little gizmos, fishing lines, razor blades etc. I understand it's like a hoby to some folks. Me, I just stuff what I need in my pockets.

If I were to make a mini kit I would most likely consider using a crosman pellet tin as the container. I use them for carrying snare kits or fishing kits in a similar way to what you describe as a psk. The way the lid threads together combined with a length of tape makes the can reasonibly water proof.

I will post a pic here in a sec......