4 sales between 3 different C9 YWNs that quite nicely agree with each other

Sold for Smissmass Caribou (~3, it's a promo item so I'm not applying any form of overpay)

http://www.tf2outpost.com/trade/19118162 (YWN)

http://www.tf2outpost.com/trade/19183500 (Caribou)

Sold for Australium Sniper (~2.5 at time of sale) and 1 bud for YWN and ~7.5 keys in "set" items = ~3.1

http://www.tf2outpost.com/trade/18850297

Offered on (and sold for) Cloud 9 Attendant (~3.4)

http://www.tf2outpost.com/trade/18511694

Sold for Harvest Moon Western Wear (~3.2, 6 month old price but see mini)

http://www.tf2outpost.com/trade/19291365 (YWN and proof that an offer was sent)

http://www.tf2outpost.com/trade/19357944 (WW)

Harvest Moon mini, calling it 3-4 buds and the exact same WW in every link so don't want to make this a full suggestion

http://www.tf2outpost.com/trade/18980008 Max's Head + minor sweets = ~3

http://www.tf2outpost.com/trade/19007230 TF Logo Tyrantium (~3.15) + ~2.5 keys in sweets = ~3.3

http://www.tf2outpost.com/trade/19376786 has a 4 bud B/O