Try either Dalceridae or Limacodidae ... similar families of moth called slug or jewel caterpillars ... I'm not sure the exact species, but it's cool! And I wouldn't recommend touching it, probably poisonous spines there.

That's a very interesting looking little caterpillar. I've never seen anything like it. Of course, I had to look it up. That whole family is fascinating! I'm so glad you posted photos and Blueberry ID'd it.