http://www.tf2outpost.com/trade/6373461 Only 2 offers over 1 month. A Bubbling Mining Light (14-19 keys), and a craft #4 Siberian Sophisticate (15 keys)

http://www.tf2outpost.com/trade/7178315 Same seller from link above. Offered a flies Whoopee Cap (19-23 keys). Price is 8 months old). Had some trade involving their Shako for a flies Stuntman (16-20 keys) but couldn't find their offer. Price on flies Stuntman also 4 months old.

http://www.tf2outpost.com/trade/7718169 Only 2 days old. Offered 18 and 12 keys.

http://www.tf2outpost.com/trade/6824256 Offered a #69 Fruit Shoot (1.5 buds) but didn't take it. Considering it an exception. #6 Whale Bone Charm + 1.5-2 keys in sweets (16 keys), Bills and EA (14 keys), Steaming Football Helmet (12-14 keys).

http://tf2tp.com/trade.php?trade=8961781 Buyout was 21 keys. Sold for a Bubbling Buckaroos (13-15 keys).

http://www.tf2outpost.com/trade/7411926

Week old. Nobody has bothered making an offer on it.

Note: Craft # prices are from this site. Couldn't find enough to accurately price Flies Whoopee or Stuntman.