Technical stuff: a Norman DP320 strobe was place inside a 12x8 inch styrofoam cooler with the lid replaced by black foam board. A six inch hole in the foam board had three pieces of typing paper layered over it, each cut with holes one inch smaller than the previous one. Whereas I wouldn't take styrofoam coolers to a wedding or a corporate shoot they work as well as my $100+ Lightdomes at 1% of the cost. Here's another shot with a larger cooler covered with a piece of white fabric fav.me/d94g2rs
which is basically what my Lightdomes are.