The Split Ring Key: Another great product from Scott Amron, the designer behind the New Soap Old Bottle we covered a few months ago. Carry your keys on your other key. Real working key blank. Key blank can be cut by any key cutter to fit KW1 or SC1 keyways.
He’s also selling a 30% stake in his “Split Ring Key Blank Patent”… I inquired to find out how much he is looking for. Via PSFK