Create new Bitcoin address and never spend that coins/ use mixer/ exchange them back to monero
Bribe us to implement the other direction!
No, seriously: if there's considerable interest, we might consider implementing BTC->XMR.
It's not on the dev schedule as of yet, as we weren't sure about its usefulness.
Opinions?
Think its a great Idea.... New to Monero but so far loving everything I have been researching...Could do with out seeing the devs/faces of the project plastered everywhere arguing with every god dam thread but hey, ..this is crypto ................ I think making it BTC->XMR could be a big help to drive user adoption and reduce friction in the XMR purchase process. Having away to seamlessly go from Mass adoption (BTC) to Monero can be nothing but helpful. Its basically a Monero tailored ShapeShift.io (Which if I read correctly erik will be adding Monero to shapeshift in the near future!!)
XMR.me!