Polymerbit Bitcoin Banknote Project
0.10 (1/10 BTC)
The lowest denomination planned at the moment. Might make a 0.05, depends really.
Reverse
The idea was to have the public QR on top of a tamper resistant sticker. The private key is printed underneath.
The 0.2 BTC (still working on the back)
Quick Mockup of the others
1 BTC note
There are security features hidden all around the front and the back. UV ink, micro text, gillouche etc.
I got bored of having BTC on a computer screen, so I designed and plan to print cold storage polymer banknotes.