Only two for sale right now.

http://www.tf2outpost.com/trade/7967382/ Offered a harvest moon tyro (10 buds), a Burning Hoodie if he adds (9.5 buds), flies anger if he adds 4 buds (11 buds), and a cloudy moon tree (9 buds)

http://www.tf2outpost.com/trade/9208799 Offered a NnB Killer Exclusive, P energy snaggle(9 buds)(rejected)

As you can see, the two sellers have received offers in this range and have declined some at 9 in unusuals, and their claims that the ladt one sold for 10 pure I found to be correct after a little research into it's seller's trade history: http://www.tf2outpost.com/user/8364/2 just scroll down a bit and look at the TC trade where it is offered, and then the trade above it where he has 10 buds for sale all from the same person who bought the TC off of him.