REUPLOAD FROM THINGIVERSE!
I've seen a lot of similar designs, but nothing I liked.
So I decided to design my own.
I did a lot of variations of standard designs and a lot of lot of tests.
The result is here!
It's small and works like a charm!
I've made a lot of prints with it and I had no issues.
You can find it also as part of the RepRapLtd MultiFilament repository: https://github.com/RepRapLtd/RepRap-MultiFilament/tree/master/Filament-Y