I've had some decent luck selling wigs via the Cosplay.com Marketplace. Even though it's been temporarily taken down (weep), there's a make-shift forum to sell things. I'm trying to sell these last four wigs since con season is around the corner again!  (Well, these are the "last" so far until I decide to sell anything else. xD )

Link to my first post: [link]
+ Long silver wig
+ Super short brown spiky wig SOLD
+ Sora wig
+ Flippy strawberry blonde wig SOLD

Link to my second post: [link]
+ Long wavy blonde wig with layers
+ Dark blue shoulder length wig

Link to third post: [link]
+Short pink wig
Photos and prices are in the post.

If you're interested in any of those, you can PM here or on Cosplay.com itself.

Things to note:
- I accept payments through Paypal only!
- Free shipping to US residents since I ship using flat rates.
If you're outside of the US and want one of these, extra shipping charges will apply. :c