You want to limit your risk? Buy a product that's shipping. (that's to you and everybody else)
There is always an element of risk, especially when your working with the bleeding edge of a new industry. That's why we are going to visit KNC to see what it's all about. To see if the risk is worth it.
And even then, it's a risk:
Goods manufactured.
Bitcoins received.
Packaged, and waiting for DHL to collect.
Factory burns down. Insurance company wont pay because customers paid in Bitcoins.
Shit happens.
Look, any business you start that has a chance of actually making is needs seed capital and/or customers. 5000 EUR is failure capital. No customers is just failure.
You have no money, you don't pay engineers, you don't have a product.
Show me the money and I'll revise my assumption of FAIL.