Free to a good home:
One pair of Schwinn S-7, 27" (630mm) knurled steel rims - just the hoops. Same as used on the Schwinn Continental, Varsity, and a number of other forgettable bikes. They'll polish up beautifully. If you want the narrow 27" rim at the back, it's yours too.
You must cover actual shipping via FedEx Ground. Shouldn't be more than $20, if that. If I ship out the rims and you fail to cover the shipping, I'll send forum member Michael Angelo to your door to lecture you about the proper way to replace hub cones until you commit suicide.
PM if you want them. I've listed them on the local fixie forum as well, so the first who PM's me gets them.
-Kurt