I'll tell you straight out bro, smoking out of plastic and metal is nasty (my opinion that is shared by many). You want to enjoy smoking to the fullest invest in a proper glass piece, a small glass on rubber bong (not too small atleast 8 inches) or a nice 4-5 inch pipe will only cost like 20 bucks and will be good enough until you get into the swing of smoking.
And it will last you until you break it.
But if you really want a home made then atleast keep it glass, I used a dremel to put a hole in an old juice bottle and put a rubber gromet around the inside, squeezed a female piece in there and got a bong bowl with a rubber O-ring. It you dont have a dremel or a diamond drill bit then I guess you can use fruit to make pipes, I'm kind of really against plastic/metal.

Good luck in whatever you choose though.