It seems the only think I can price is Prancer's Prides.

http://www.tf2outpost.com/trade/18858984 Sold for NNB Hat with no name ( 18 keys. Yet outdated. WHY IS EVERYTHING OUTDATED)

http://www.tf2outpost.com/trade/19040899 Sold for Terror-watt Strot. Stove pipe. (1.2 buds ) - Thanks cornix for the recent pricing.

http://www.tf2outpost.com/trade/18983394 Sold for 14 keys 2 ref (Outlier?)

http://www.tf2outpost.com/trade/19109504 Sold for Orbiting fire Detective Noir ( 20 keys yet OUTDATED AGAIN )

There ya go. All I could find. I'm sure somebody will come through and wreck this proof somehow but hey, worth a try.

If you find any other proofs or such just put it below and I'll toss it in there. Keep it polite.