solar-powered_visor_fan
Look at this solar-powered visor fan, what it will puff to, is not clear to me. Since, if it blows to eye then who the sane wants to dry his eye, otherwise it does not seem it is drying your face.
However, it seems that this cap absorbs the sun energy and power the attached fan. And if you wanna have one, sorry I have no idea and information from where did this buddy get it.

Via: gizmodo