Eggs

Well... if the nurse isn't an idiot, you won't even feel the blood being drawn from a vein.

That's true, I've encountered a couple of nurses who liked to poke around inside the vein with the needle at the end...

The only problem I have is always finding a vein.

Funny, I have the exact opposite situation - it's rare to find a nurse who isn't surprised by how big my vein is.