Pricing only based on the clean one. Other one has been duped 4+ times.

http://www.tf2outpost.com/trade/14683225 - b/o 5.5

4.7 - http://www.tf2outpost.com/trade/14393357 - http://backpack.tf/id/76561198044672940?time=1379660400 - steaming tossle + bubbling bonk boy - it appears no sweets were added; offered so no overpay

Other offers here - basing price on their original suggestions:

http://www.tf2outpost.com/trade/13317021

overclocked jefe ~4.8

Secret fruit shoot ~4.5

Stormy bonk + 1.3 ~4.5

Moon bonk ~4.5

Hearts honcho ~4.4

Cloud 9 mancer ~4.3

lantern honcho ~4.1

Some other offers but the hat values are >6 months old

5.5 - http://www.tf2outpost.com/trade/13065325 - PE nappers + 2 - basing off of original suggestion on napper

Clean one currently has a b/o of 5.5. But it has sold for that in the past. Also a sale at 4.7.