A cheaper alternative to Marc by Marc Jacobs' mouse flats

I love Marc by Marc Jacobs' iconic mouse flats, and I have a pair of my own as well. But if I could justify it, I would definitely get these shoes in more colors, like a white pair for spring and summer. But is there really a need to get the real deal when there are similar brandless pairs, like these, from Modcloth, out there?

I think these shoes are just adorable, would love to get these, actually. And I actually might!