I know this is an old thread, but I thought I'd revisit it.
After trying my hand at growing a few seeds I got from Chris at Hallson's (and getting at least one, and maybe two, streakers from the batch of 15 seeds) I think I may just give hybridizing, of a sort, a whirl this year.
I was reading a writeup about the late Mildred Seaver and was inspired by how she said she hybridized by letting nature do all the work--she cut the flower scapes off the "uninteresting" hostas she didn't want to breed and let the bees spread the pollen elsewhere, then collected the seeds from the pod parents. I have 'Christmas Tree Gala' (a streaked breeder) and I'll probably use Mildred's technique and see what she produces this fall.
