Found an ugly white clump on my sunflowers a few days ago.
Then realized it was some sort of woolly caterpillar. Suddenly it didn't look as ugly. I've no idea what species it is. And I'm not certain that sunflowers are the host plant. I never saw it eating any leaves, and can't find it out there now. The actual Woolly Bear caterpillar, I've read, has the ability to eat virtually any plant it likes, but they do wonder great distances for unknown reasons.