I Predict,

when this becomes available in April,

 this will be the 'must have' gadget, it looks like some kind of futuristic device from back in the 1930’s, 

 it is all metallic, but features decorative elements like a small oscilloscope and an astrolabe, as well as interconnected gears and latches,

 as steampunk a device as you can imagine, but what is it?

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 it is really just a card holder, but a really cool card holder,

check out the video to see how neat it really is, but total steampunk looks like this do not come cheap, the gadget can be ordered online from novelty retailer Village Vanguard for 46,200 yen, (at today's rate, £342.12 or $424.12), as an aside the company also sells so many 'must have' items, I chose this page completely at random, for myself the ducks would look great on a work desk!