Yes. I can probably loan you a rear wheel. It's a crappy Suzue basic on an Alexrim DA28 with a 3/32 15t cog on it. That's the only cog I have on hand. It would be fine to get a sense of riding fixed but I wouldn't advise skidding or skipping on it. It's a little stiff because the cups are a scarred up, but the cones and bearings are new. It's on my work bike at the moment, but you could borrow it for a week or so. I do need it back at some point. If you borrow it the only condition is that if it gets ripped off, you'd replace it (or some compensation, given the hub is pretty beat up).