Drop it.

Outpost

Sellers at 7 keys or lower

http://www.tf2outpost.com/trade/28569994 (Young) 7 keys.

http://www.tf2outpost.com/trade/28569182 (1 day, unbumped) 7 keys.

http://www.tf2outpost.com/trade/28565907 ('Quickselling' for 2 days, no offers, well bumped) 6 keys.

Unsolds (7~7.45 keys)

http://www.tf2outpost.com/trade/28559983 (5 days, well bumped) 7.33 keys

Backpack.tf Classifieds

http://backpack.tf/classifieds?item=Bruiser%27s+Bandanna&quality=11&tradable=1&craftable=1&australium=-1

1 seller at 6.83 keys

5 sellers at 7 keys

1 unsold at 7.33 keys (2 days, well bumped)

1 unsold at 7.38 keys (1 day, well bumped)

I'll post screenshots of classies soon, my screenshot isn't working right now.