Not OP, but if you just want to experiment and you have a cast iron frying pan, there are instructions out there on how to roast beans with a frying pan. I'll leave the instruction search as an exercise for the reader ('cuz I don't know which ones I used), but basically just keep those beans stirred until they start to pop like popcorn, and you're done. CAUTION: this will make a ton of smoke, as in, if you have a way to do this outside then do it. It's what keeps me from making a habit of it.

That said, much like home-brew beer: best beans I've ever had (granted, I'm no snob). Just writing this makes me want to order a bag of unroasted beans off Amazon and give it another whirl.

Or go the easy route and just order what sibling comment recommends. :-)