Over the last couple of days, several people have asked about making my vegan ice cream recipes without an ice cream maker. My response was generally of the "Duhhhh...ummm...I dunno" variety. And then I realized that teh Intarweb can answer any question! So I Googled my question and discovered some rather easy methods here and here. (Just ignore their recipes and use your own.)
Another method is to pour your chilled ice cream mixture into a bowl and stick it in the freezer. During the freezing process, take it out every once in a while and beat it with a hand mixer or whiz it up in a food processor so it doesn't freeze into one solid lump.
If you're adventurous, you could even use liquid nitrogen. How awesome would that be? I'll tell you: too awesome.
If you're going to be making homemade ice cream frequently, though, I do recommend purchasing an ice cream maker. It's easier than the other methods, I think. I've got this one
($50), and I really like it. There are cheaper models, too. You should be able to pick up a basic maker for around $20 - 25.