Here’s Sony Ericsson’s GreenHeart concept. The handset was made using bio-plastic casing and keypads that can be easily recycled. The GreenHeart even comes bundled with a new charger that is smart enough to turn itself off when the phone is fully recharged. Environmental concerns even extend to the user’s manual which is entirely HTML-based to save paper, thereby saving trees. Add in environmentally conscious packaging, and some hippies might let go of the tree they’re hugging in order to get one. The Sony Ericsson GreenHeart is only a concept, but it shows a new greener direction.

Many gadget makers are looking for unique ways to stand out while providing eco-friendly alternatives to plastic gadgets. As far as USB drives go, this one manages to be both environmentally friendly and able to stand out from the crowd. As a bonus it will hold your data.

The NAND based flash drive will be available in 128MB, 256MB, 512MB, 1GB, 2GB and 4GB sizes. The high speed USB 2.0 memory stick resides inside a hardened bamboo shell that can last forever. It comes with a bamboo slide box, so you’ll always know where it’s at. Plus it looks really stylish sitting on your desk.

Let’s say you’re riding your bike around town and suddenly you have the urge to launch tennis balls at something or someone. Thanks to this inventor, you can satisfy that urge and launch away. It’s completely eco-friendly too, built from two recycled bikes, scrap steel and wood, even a leaking water jug and a lacrosse stick.

Pretty simple but genius way to make a tennis ball launcher. As you pedal the bike, you power 2 other bike wheels that launch the balls. Perfect if you like to ride your bike to the Tennis court. Or just blast pedestrians and the like.