Today a friend of mine accidentally dropped my ashcatcher onto a cement floor. It should be broken, but it somehow survived and now the diffuser is wedged in the joint. I've tried oiling it with vegetable oil, pulling ridiculously hard, but with no results. Is there anything I can do to get it out?
penetrating oil? vegetable oil is different penetrating oil i think seeps into the joint i could be wrong tho, let us know how it goes!
If you don't mind sacrificing the diffuser, I'd just break it. Otherwise maybe try heating the area where its stuck with a lighter or something after applying some sort of lubricant. After giving it some heat, try pulling very hard, twisting while you do so. The heat thing is a good trick for plumbing fittings, so maybe it'll work on glass.