My Missouri county (liberal hell hole in a sea of red) has used Sharpies often in previous elections. Also gave us a folded paper to conceal the ballot until slid into the voting machine and counted.
This election my polling place was changed (although the previous location very close to my house was still open) and I was given a pen/stylus combo with which to sign on a computer tablet to confirm my identity AND to fill out the ballot. I did not keep the pen, but I don't see why other people may not have held onto it.