What can i use instead of bubble tub mix? my fraternity is throwing a "foam party" tonight which involves filling...

my fraternity is throwing a "foam party" tonight which involves filling our garage beside foam usually made from bubble bath. but. we already bought out every ultimate bottle in town and requirement a lot more. Is here anything readily available, that could be used as a replacement? We use a contraption we built, so its not like its so sensitive that it wants something specific, but we just want something that will be not dangerous for people to be covered surrounded by, and will produce lots of foam! help!
Answers:    dish soap .try the crack of dawn it makes alot of bubbles
one full bonnet full of dawn (any scent) soap to an equal amount of wet should make a concrete good bubble solution. It's what my child make up to make bubbles over the summertime.