I buy knockoff.....err, I mean "Replica"' watches and resell them on a Sports Forum.
I use to do this but its not worth the time anymore unless you have access to stuff that is almost free. Margins are too small and you will find wholesalers stuff all over ebay. Loomis is right, about 10 years ago is when it was profitable. ebay & pp fees make it tuff to turn any profit. IF you can get items sold, were are talking very small amounts of money made. Pennies to every $10 sold.