Four sales, hat sales to support the high and low end and a couple equivalently valued sales involving professional items because I found them before I found the valid hat sales and I'm not removing them.

Sold for Electrostatic Jumper's Jeepcap (~2.3)

http://www.tf2outpost.com/trade/18666722

Sold for Professional (~0.5 based on http://www.trade.tf/price/6526/-1/132 and the Community Market) Australium Eyelander (~1.8 at time of sale, the price slashing started the day after) = ~2.3 buds

http://www.tf2outpost.com/trade/19009900

Offered on (and sold for) a Purple Energy Tribo... brain slug thing(~3.5) alongside a Professional (~0.8 based on http://www.trade.tf/price/6526/-1/208 and the Community Market) Festive Flame Thrower (~1.2 keys... why would you not make it a S.F...) = ~2.7 for DP Noble NIckel

http://www.tf2outpost.com/trade/19269076 (Proof it was offered)

http://www.tf2outpost.com/trade/19354408 (Proof it was a Noble Nickel and not a Towering Pillar like the offer says)

Offered on (and sold for) a Stormy Medic's Mountain Cap (~1 see mini) and a Nuts and Bolts Blighted Beak (~1.7) = ~2.7 buds

http://www.tf2outpost.com/trade/18786219

Mini for Mountain:

Sold for 1 bud

http://www.tf2outpost.com/trade/19139666 (Mountain Cap)

http://www.tf2outpost.com/trade/18950007 (Cap seller offered 1 bud so evidently they got their bud)