instead of going ghetto you could make a pretty solid copper copper 10rd tube.
this pretty basic stuff from your plumbing department in your local hardware store. except for the phantom feed end cap and plastic covering on the cross drilled section. It took a couple days of welding and measuring but its definetly stronger than pvc piping. this right here is my 10 or 15 ball model. i have another one that can hold about 25 balls. this design was based off of a friends ghetto mod and a phantoms feed tube.