First suggestion for this hat ever.

http://puu.sh/403Oi.png

Previous owner bough it for a Lvl 10 Max, TS Bill's, and sweets (2.6)

http://www.tf2outpost.com/trade/13377073

Offers

Mem. Leak Ballcap + Sweets (2.3)

Lantern Whoopee (2.1)

http://www.tf2outpost.com/trade/13430336

Offer of G. Energy Engineer's Cap + 20 keys (2.5)

http://www.tf2outpost.com/trade/13578931

Was put up for 2.4, but only for an hour.

http://puu.sh/403Ic.png

I bought it for a Peace Yellow Belt, TS V. Slug, V. Bloke's, and a S. Shotgun (1.8)

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http://www.tf2outpost.com/trade/13533851

Only other one for sale was sold many months ago and is looking for ~60 keys.