Like everyone else here does from time to time, I bought too many headphones (turns out I only have 2 ears), so now I need to trim my collection down.
I have a pair of Grado SR-60's that have only been used 4-5 times and look practically brand new. These are GREAT headphones which easily compare with others in the $100+ range. They come in the older white box and I even still have the registration card so you can have that as well.
I also have a pair of KSC-35's that are practically mint, having only been worn 2-3 times for a few minutes to test them out. These are also awesome sounding headphones and were recommended to me by many different posters here. Unfortunately, my strangely shaped ears won't agree with them. They also come with a nice carrying pouch.
Grado SR-60's - $50+shipping
KSC-35's - $20+shipping
Both for $60+shipping
PayPal is VERY much preferred, though other payment possibilities can be discussed.