Gah. Microwaves. I'm still convinced that they're not the best of appliances, and they're probably the only one I have that I could do without, but they still come in handy.

That said, I probably know some people who have used ones that they're getting rid of. If you're willing to wait a few days, I could ask around.

(Or Craigslist/Freecycle for it. You're likely to get something functional there, given the bit where microwaves tend to be pretty durable and not used as often as we'd think).