Impact Sprinkler Mark 1

Hello World,
The last couple of days my life has mostly been revolving around Impact Sprinklers! I think that Impact Sprinklers might be the coolest things since sliced bread. They are also most certainly printable. And, given enough work, probably actually useful.

My fascination started when I saw: http://www.thingiverse.com/thing:10127
I have never been in close contact with an actual Impact Sprinkler, but believe me when I tell you that I have seen many YouTube-clips of them in action. I