In my original concept design for a Steem USB cold storage device I used wood as the main material. After giving it some further thought I also wanted to see how the design would look in metal.
I think metal is also a good option for this design and it's hard to beat this material in terms of strength and durability. I still aim to make this design in wood, but if I am able to get the equipment for casting, I will try to make it in metal as well.
I'm even considering using real silver to make one, but it would have to be 925 silver, so that I doesn't oxidize and need extra maintaining.
I think silver combined with a black colored Steem logo looks pretty nice.
By advice by 
What is your opinion, do you prefer the design in metal or wood ? I attach a picture below from my previous post of the wooden USB design, so you can more easily compare.
Here is also some picture showing the function of the device where you can store both the USB and The passwords printed on paper. The USB is in actuality quite small and can fit to any computer device.
Here is an overall look of all the components.
