I started out using a bandaid. That wasn't enough the needle would still go through it, so I used two bandaids at a time and from time to time would still have a needle eye go into my finger. Then I learned about these clear plastic sticky things called Thimble It. I now put a bandaid OVER it so the needle doesn't slip off of the sticky "thimble".
I no longer have hamburger tips (finger tips that look like they have went through a meat grinder)!