Is there anyway to distill moonshine without a copper tube?
Sure, but it will tend to have a sulphury smell/taste to it if the steam can't lick some copper somewhere in the process. If you like rotten eggs, you're in luck. Good luck.
people have been distilling alcohol with glass, and even plastic these days, but be careful to make sure that its capable of handling the heat and is food safe also rember that privately distilling is illegal in most of the world (New Zealand being the exception)