actually, what i've found to be the best scraper is a piece of a coat hanger. go get a wire coat hanger that is not too thick and a pair of wire cutters. next cut the wire towards 1 of the ends of the long part. then cut it again 5 inches down. take that 5 inch piece of wire and make a small bend on 1 end to make a scraper hook thing which you can reach to the edge of the insides. if you use this it will be easier to scrape the resin off the tool. hope this helps.