I'm going to go and take a stab at price suggestions with a hat price I know. I bought one of these for my brown bomber collection. Please see proof below.

Currently there is only one on the market (not mine, as it is not for sale). And so it is hard to pin down the price, but we will still try since hardly anyone is going by the price listed here.

http://www.tf2outpost.com/trade/10030263

Notable offers:

Planets Modest + painted bills (Rejected)

Same buyer offered to exchange Modest to a more desirable effect (Added him)

3 buds + Storm Toque + Big Country Nuts (~4.5 to 5 buds) (Rejected me)

4 buds + 1 key (Rejected)

4 buds + 2 bills + sweets (~4.66)

3 buds + clean Max (~5 buds) (Rejected me again)

I tried to buy this hat twice already and wasn't aggressive enough. A green confetti owner added me and traded me a different one. Mine is part of my brown bomber collection, so it will not go on sale. For what it's worth, I am also including my trade history:

http://s7.postimg.org/ekthvuhy3/bbmgf.png

Clean Steaming Brown Bomber (I was 3rd owner) + pair of earbuds (~ 4.66 - 5 buds)

The previous seller I believe was getting offers of Team Captain (NnB) sweets, Hearts Merryweather with sweets, etc.

I think this is a reasonable suggestion, and a useful estimate for those wanting to purchase one of these. Also note that a purple confetti one was recently approved for a price of 4.6 - 5.4 buds and is currently getting solid offers

Thanks for reading!