These Lightcup drinking vessels feature a solar or dynamo-powered LED lamp fixed underneath the lid that can be used as a flashlight or a warning signal (white or red light settings) when camping, hiking, etc. It’s an interesting idea, but it would be even more helpful if it included a UV light setting to sanitize nasty river water. The dynamo version is pictured after the break.
Product Page: Solar ($5) Dynamo / Hand Crank (Priced on request)
