The Garden Igloo Kit. in a few different versions. could be a greenhouse +/or alternative to tent accommodations to house a few more summer retreatants. not particularly cost effective though, in my humble view.
Laser Projection Virtual Keyboard, Revolutionary laser technology projects a virtual keyboard on any flat surface. Easily pair the laser projection Virtual keyboard with your smartphone, laptop or tablet.
I'm sure the airport security folks would have a blast with you, but this is still a great idea. The frustration-free Travel Security Belt is the traveler’s ‘insurance policy’ against a stolen or lost wallet. Fits cash and paper copies of your IDs.