Gluing styrofoam to glass?

I would try using cyanoacrylate (super glue) or 5 minute epoxy

Or a hot-melt glue gun. That glue works pretty well on styrofoam but it's pretty thick.

HEY,
What they said would work great. Id go with the hot melt glue gun, as it dries quicker, but thats just me.

Randy

Thanks guys. Don't have a hot-melt glue gun, though it does sound like a good idea, so I think I'll use the 5 minute epoxy.

I was going to recommend polyurethane glue such as Gorilla Glue or Elmer's Pro Bond, but they take longer to set than you want.
The 5-minute epoxy should work fine and if you don't need much strength in the glue joint then the CA that was recommended should work well also.

Mike

Also try scuffing the glass with sandpaper to give the glue more surface area to grab on to.

A drop or 2 of acetone would work as well (melts the cup).
Future would also work

I have done both of these before and it's amazing what you can get to stick together.

But in reality: If you have any type of silcone caulk or liquid nails (construction adhesive), either will work and bond instantly.