UHU Por Glue for Styrofoam

One of the best glues that I've used for canopy attachment.
It has a decent strength, and can be used when you might need to pry things apart, or need a non rigid
joint. Over time, it may become "stiffer".
For full strength, wait up to overnight.
Works well with many plastics and foam, but test to make sure.
This glue seems to be in demand, and "out of stock" status is not uncommon.