Inflatable "blimp" projector screen

If you want to recreate the drive-in movie effect in your back yard, in a weatherpoof, squishy stylee then the blimp screen is for you.

A home starter package, complete with blower-upper, projector and DVD player and a 6 x 8 foot "baby" blimp screen costs around $4000, but then you could charge for admission to the movie to recoup those costs...