We see the power of metaphor in these outdoor lights. Open the lid, place in the sun, and collect energy. Close the lid and enjoy a warm glow from LEDs all night.
There's a certain childish charm and simplicity to this $40 tchochke that we'd like to see built into a few other items to encourage efficiency...
• Car gas gauges and MPG readouts
• Gas and electricity meters
• Home thermostats
How would you redesign these (or other) mundane things for more fun and to encourage more reflection?