During that eBay deal last time I bought a pair of Ray Bans. I had previously tried the same ones on at sunglass hut and the girl said the 49mm and the 51mm are both fine on my face. So they came in today and I wore them. Nup. Definitely too big.
Don't feel like returning them overseas. Feels like a hassle. Should I sell them? Would there be any places that would take them in for a size swap (unlikely)?
Did you look in the mirror to check for yourself?
Well if they accept returns, then that would be the better option
Yes, if you don't like them and they are too much of a hassle to return.