You can use PVC...

Sorry, couldn't resist...

The most 'ghetto' I've gotten was using aluminum foil as a screen b/c I ran out. If I don't have something to smoke with, I just go buy papers. Knew a kid who could make a pipe and bowl using a bic pen and aluminum foil. Never tried it though...as fucked up as this kid was, if it was any indication of what smoking like that can do to you, I'll pass.