I don't like when my items unpriced, so let's do it.

Completed sales:

Sale #1:

http://www.tf2outpost.com/trade/17036880 - sold for Bubbling Gridiron Guardian ( http://www.tf2outpost.com/item/440,2255996177 ), unpriced, but his price in pure was 11 keys, so according to the rules taking this sale as 11 keys

Sale #2:

http://www.tf2outpost.com/trade/17058846 - sold for Steaming Cyborg Stunt Helmet ( http://www.tf2outpost.com/item/440,2256052381 ), but the seller added 2 keys = 16 keys - 2 keys = 14 keys

http://backpack.tf/id/76561198091992584?time=1388908800 - buyer's backpack before the deal

http://backpack.tf/id/76561198091992584?time=1388995200 - after the deal, check the history of Sun-on-a-Stick and 2 keys at the left

An unusual overpay calculated as original middle price * 0.9.

Sale #3:

http://www.tf2outpost.com/trade/16304703 - sold for a Green Confetti Whoopee Cap, but his price was 15 keys, so according to the rules taking this sale as 15 keys

Currently on the market:

http://backpack.tf/classifieds/search/id/52d0298c4dd7b8ce1d8b4567 - 1 for 15 keys

The rest sellers are looking for offers.

Also, there are few available on the Steam market at 10-12 keys http://steamcommunity.com/market/listings/440/Collector%27s%20Sun-on-a-Stick

Offers:

http://www.tf2outpost.com/trade/16343931 - got offered 10 keys and 15 keys

The rest trades doesn't have any offers to show here.

I would like to point out that I've used the rules from the unusual pricing guide: http://forums.backpack.tf/index.php?/topic/6033-new-unusual-price-suggestion-guide-the-cheat-sheet-full-guide-soon-to-follow , because all sales listed here are in ususuals.

This is my first suggestion which includes unusual's trading, so let me know what do you think about it.