Marti,
Rose hips can be made into jam or jelly, and since you are removing the seeds, you've done half the work already!
This page has a good recipe:
http://www.simplyrecipes.com/r...
Our first frost won't be for a few weeks. I'm looking forward to harvesting lots of rose hips this year, mainly because I got too busy to prune the roses, and they grew more hips than usual.
I've never had the patience to propagate roses by seed. It takes long enough by cuttings! Good luck with the seedlings!