I have a rubber stopper on mine and I like it, but sometimes it gets sorta stuck and a little bit have even ripped.
rebgirl420 Reviewed by rebgirl420 on . glass on glass vs. rubber stoppers i have a bong with a rubber stopper. i could make it glass on glass(and diffuser downstem) for about 50 bux. is it really worth it? also, if i do that would an ashcatcher be a good investment also? Rating: 5