What could be more practical than a Solar AM/FM Radio Visor powered by the sun? It just makes sense: a visor is supposed to keep the sun out of your eyes, and while it's doing so, it sucks up all that solar energy it's blocking from your delicate peepers.
But wait. Wearing a solar-paneled visor with a radio antenna that sticks up out of it makes you look like some sort of extraterrestrial nerd. That might not be the first impression you seek. If you want to really annoy everyone, crank up its internal speaker, all the way to 11. Heck, the visor's makers could've put a fan inside, or at least hidden the antenna. Ruin someone's day, maybe yours, for $26.50.
Solar radio visor plays music, loses you friends [Sci Fi Tech]