Welcome Blue 60
Your daylilies alone probably didn't create a new "variation" all by themselves, however if you have seen a proud bee flying around your garden passing out tiny cigars you probably have been found the source of your new cultivar.
Hundreds of daylily folk hybridize daylilies, in fact so many do that it is estimated that there are 80,000 registered cultivars. Bees assisting daylilies are so good at creating progeny that hundreds of those registered cultivars just happen to be bee created, and of high enough quality to result in being registered.
Some hybridizers have to race out in the morning to beat the bees to their planned crosses for the day.
I'm trying to remember the hybridizer from Cape Girardeau (someone will help me) Get in touch with her and she will lead you to a club where folks will talk your ears off about hybridizeing.
Good luck!
Charley