Why did you need a lot? Long story, but I was just messing around and ran my nail across one and it was whiteish yellow ooze.
Is that the good stuff? Let it dry, roll it in a ball, and you're good to go? What would be a good amount to gather?
It was only a very small flower due to how we planted them. (opened package, dumped in pot) About 30 grew in a 13" pot... I thought they were weeds while growing... I didn't care for them at all but to give em some water, but we did plant them early early spring.