Easy to buy for less than 1 ref, some people trying to squeeze an extra scrap out of the thing, but 0.66 is the price. There is one selling for 0.33, but because there's only one and there are offers of 0.66, 0.66 flat is fine for now.

1 ref

http://www.tf2outpost.com/trade/8360515 - Unsold for 1 ref

http://www.tf2outpost.com/trade/8297141 - Unsold for 1 ref

http://www.tf2outpost.com/trade/8358670 - Unsold for 1 ref

http://www.tf2outpost.com/trade/8249833 - Unsold for 1 ref

http://www.tf2outpost.com/trade/8371869 - Unsold for 1 ref

http://www.tf2outpost.com/trade/7951914 - Unsold for 1 ref

0.77

http://www.tf2outpost.com/trade/8409466 - Selling for 0.77

http://www.tf2outpost.com/trade/8400786 - Selling for 0.77

0.66

http://www.tf2outpost.com/trade/8405457 - Selling for 0.66

http://www.tf2outpost.com/trade/8412058 - Sold for 0.66

http://www.tf2outpost.com/trade/8249833 - Offer of 0.66

Only 4 pages on Outpost, but there just aren't any buyers.