Yet another thing you never knew you needed: Solar Coasters. After all, the garden parties of summer are right around the corner (sort of) and how will your guests ever be able to find their drinks at night unless they’re resting on a color-morphing solar-powered LED coaster?
These crazy little gizmos sense when the sun’s out to get their charge, and then wait in the dark until your guests place their drinks on them to light up. Imagine the surprise! The conversations that will ensue! Your party will be a hit!
Seeing as how the Solar Coaster is not bound to replace any other type of grid-tied light up coaster we know of, it’s safe to file this one under “Eco–NOT!” Still, as far as basically useless gadgets go, they’re pretty cool.