Any small stick will do. I've used the caps from pens, toothpicks, my dabber tools, etc. It's not glued it or anything, just sits in there. To put it back in I just push it in with my pinky (since it fits in somewhat haha) and then use the battery to set it. You might need the poker thing to set it in but it's not hard. I leave mine in after I forgot two different times that I had removed it and ruined a few trenches. I'm way too used to just releasing pressure on the battery to turn it off to make a change like that.