yea, scraping a glass pipe takes much time and effort but the best tools to have a lighter (resin scrapes easier when the pipe is warm) paper clip (multiples for diffrent shapes to get around diffrent obstacles) and some where to put all that resin while your doing it.... glass pipe resin is very stick compared to metal pipes, so touch it as little as possible. make sure you have awhile to do this too, cuz it is a very time consuming task (that is if you're going to scrape more than just the bowl)