using tubes as wheel spacers?

My initial thought was - are you insane? Then I thought about it and I came to the new thought - are you insane? The longer studs with the wheel mounted at the end is an invitation to snap off. And a tube to space it out? I work in a shop and hate all spacers, but if you aren't going to do the right thing and get the right wheels to fit your car you should at least buy proper spacers. Life sucks bad when you lose a tire. Not worth the chance.