Dirty Bonk Boy is an easy sell for 1 ref, and can get 1.33 or higher if you wait a bit.

http://www.tf2outpost.com/trade/8040912 - was offered 1.33, then 1.44 (rejected both)

http://www.tf2outpost.com/trade/7916143 - selling for 1.33, was added (unknown status)

http://www.tf2outpost.com/trade/8111919 - offered 1.33 twice

http://www.tf2outpost.com/trade/8227093 - offered Dirty Duffel + Dirty Fed (~2 ref)

http://www.tf2outpost.com/trade/8171750 - offered 1.33

http://www.tf2outpost.com/trade/8161339 - offered 1 ref twice

http://www.tf2outpost.com/trade/8299672 - sold for 1 ref

http://www.tf2outpost.com/trade/8305433 - selling for 1 ref

http://www.tf2outpost.com/trade/8161339 - several 1 ref offers, all declined

http://www.tf2outpost.com/trade/8258826 - selling for 1 ref

http://www.tf2outpost.com/trade/7851678 - several 1 ref offers, all declined

http://www.tf2outpost.com/trade/7677903 - a few 1 ref offers, what looks like a 1.11 offer (didn't say what he wanted, would be lowballing on anything else)