Just finished my new filler rod storage. I mainly used 0.8mm sheet metal (S235) and HT tubes (is this description comon in the US?) for this small project. My wife says it looks odd - as if it was made for some science fiction movie. I think it is just cool and comes in handy to prevent the filler rods from any contamination or whatever...
As you can see from the pictures, I abused my hydraulic hole puncher as dimple die tool. But no worries. That thing is build strong enough (it can even punch holes in 2mm stainless).