Scott Amron's Split-Key-Ring
I’m not entirely sure if this qualifies as green, but I certainly think it deserves the title of Good Design. Designer Scott Amron has designed a "master key" that put all the others to shame. The Split-Ring-Key combines the key ring with the key itself, leaving us all thinking "why didn’t we think of this before?" With the Split-Ring-Key, Scott commands "carry your keys on your other key!" The key blank, $3.50 each, can be cut by any key cutter to fit KW1 or SC1 keyways.