I used to buy small pieces of this plastic stuff from the craft department and that was the best thing I found to chew, but I didn't do that very often because I was afraid it might hurt me. I also chewed on pen caps and those silicone bracelets that used to be popular a few years ago, and my nails. I have managed to stop most of that now except once in the while, but I would like to find something safe to chew because I still have that urge when I see things that look nice to chew.