New handle for valve

Sometimes happens that plastic handle part of toilet/bathroom water valve goes broken.
So it is not necessary to replace whole metal valve, but only this part.

I dont know why valves are made from good metal (brass), but handle is shitty plastic that brokes after few cycles. My design from PLA works well for 20 cycles without any broke.

--- changelog ---
7.11.2017 - Thanks for your big interest,
I added also single handle version "a wrench" + Photo is included.
Provided test results