What traps are you using?

Got back into extracting the last couple of years as skunks don't spray in covered cages. When extracting, even without spilling a drop, I don't know how, but Judy seems to know exactly what I have been doing. It was $20 but now I think its back to $15 per ounce? It does count up and literally takes just a minute to do them.

So what's the secret with extraction? I could never get them to hold still for the syringe.