Thread Duster
Recently at the LQS, there was a new tool at checkout. One end is a seam ripper and the other is a round ribbed ball which acts as an eraser. Remembered to use it today and it works like an eraser. Easy and worked great.
Next time I rip, I plan to use a regular white eraser (not on a pencil top) and see if it works as well. Might even try a pencil eraser but am concerned about color residue on the fabric.