Search:

:idea:
Something came to me, but I haven't tried it. May or may not work. If you have access to an art or hobbie store, you may be able to find a tight rolled paper used to blend drawings, kind of...

The tumbler method always works for me.

Toothpicks are the other option that I would recommend...the Party type that are colored are usually the hardest from what I have found. I get ticked...