Personally I think this effect is the coolest name for an effect ever. This is also a 1 of 1 in existence, so please don't hound me for lack of proof.

http://www.tf2outpost.com/trade/18269730 - Sold for a Disco Beat Down Harmburg (no idea of the price of this, any help?)

http://www.tf2outpost.com/trade/18575300 - Sold for a Scorching Hetmans Headpiece (2.3 buds after overpay) + 0.5 buds

http://www.tf2outpost.com/trade/19030556 - Sold for a Terrorwatt Salty Dog (once again, no idea how much this is worth) and sweets

http://www.tf2outpost.com/trade/18120690 - Sold for a Dead Presidents Impaler(about 5 buds) for this and a Cloud 9 Shako (2.5 buds)

Other offers:

http://www.tf2outpost.com/trade/19030556 - Dead Presidents Tam o Shanter(guessed at around 1.5-2 buds) + Orbiting Planets Birdcage (16 keys)

http://www.tf2outpost.com/trade/18575300 - Electrostatic FR-O (once again, no idea on a price)

http://www.tf2outpost.com/trade/18083719 - Time Warp Birdcage (also no idea)

Please leave comments with suggestions, more proof, counter proof, and thoughts. And remember, this is a 1 of 1 in the world.