Yes, I own one but there is no price set for this item. So lets make one! Sorry for the big range.

3 in existence and 5 on the market, what?

Anyway here is the proof:

My trade where I bought this unusual: http://www.tf2outpost.com/trade/12037109

I did a 1:1 with my Sunbeams Brain Bucket (2.5 buds w/ overpay)

To prove we traded: http://i.imgur.com/FT3lRPF.jpg

http://www.tf2outpost.com/trade/11386218 Has an offer of a Stormy VooDoo Juju (3 buds w/ overpay, it appears he will accept this)

I literally searched through every one of these item's histories and this was all I could find. Please don't tell me I need more proof because these hats/effects are still very new, the oldest of these has only 4 owners.