So I am inspired from xkcd today for this one:
Coinstar is a machine that you dump coins into, and it converts to bills, but usually extracting a fee. They have some exceptions, such as getting store credit (these are usually in grocery stores), or getting amazon gift card credit.
Amazon sells nearly every product in existence, and I think many people consider amazon credit as good as cash.
People on the forums seem to like getting amazon credit in exchange for bitcoins, and the difference from the mtgox rate seems minimal.
So here is a simple way to convert fiat into bitcoins and yet still remain anonymous (which seems impossible from the current exchanges).
Fiat coins -> coinstar -> amazon credit -> bitcoin talk forum auction for said amazon credit.
It would be great if some hacker not as busy as myself were to set up a site for users to sell amazon credits, but I think the forum works well enough.
It would be really funny to create an exchange completely based on amazon credits and bitcoins, but amazon credits aren't divisible so that would put a wrench into it.
Edit: you can also buy amazon gift cards for cash as well, but it isn't nearly as amusing as the whole coin->bitcoin thing.