So I've spent several hours online looking for something so simple.
a generic 1-5 gal bag w/ a spigot, in a box. I found large machines to make them, I found company's to make them, I found heavy duty collapsible reusable ones, but no, no simple bib.

could someone help!

I don't have an answer but I'll keep my eyes open for you.
What do you want to do with it?

I have grown a liking to wine and champagne, problem is, each bottle costs 10-15 bucks, only being a 1/5, that will start costing a lot of money. and I know you can by boxed wine. maybe I'll go down to the pepsi plant and ask them who makes their syrup bibs...

How about kegging a batch? I don't think it would harm the wine in any way. All you need to add is a little Co2 so the lid stays in place and the O2 is displaced. It should stay good.
If anybody knows why this would be a bad idea let us know.