Yeap i had one of these. it was really hard to sell for 1 bud, many people say that it was whort less, i managed to sold it for 1 bud + i added tiny sweets.not any of these on market currently. offers pretty much around bud. New effects hype is pretty much over and this is heavy and cancer hat

http://www.tf2outpost.com/trade/11973939 this one get sold for bubbling gym rat+15 keys (1.2)

http://www.tf2outpost.com/trade/12016052 got offers of bud, offer of 23 keys+craft hats and offer of flies gridiron

http://www.tf2outpost.com/trade/14308454 offers of bill's + 7 keys and offer bill's +12