Last week, Derek Lam cryptically mentioned he was interested in doing a lower-priced diffusion line with a retailer “like Topshop.” Well, according to WWD, it’s happening. …only not with H&M or Uniqlo as you might expect, but instead with online auction house eBay, where you can buy props from the sets of films you’ve never seen and get tricked into purchasing knock-off designer handbags cleverly packaged to seem like the real thing (but how did they get the box?).

The collection will show during Fashion Week in February (!) and will feature an online voting component (?), whereby users can help determine exactly which pieces will go into production (and, conveniently, a vague idea of how many).

[Pictured: Anais Mali wears a look from Lam’s Spring 2011 collection]