I made this little solar bug because a friend told me about his battery powered 'disposable' toothbrush (Oral-B PULSAR). This brush is like a regular manual brush with a little vibration motor and one AA battery. As the brush was worn I removed the vibration motor out of the brush and build this little bug. After removing the motor I varified the needed power with a laboratory power supply. And purchased a solar cell which support the necessary power. For the legs I took a old IC and cable sleeve for the tentacles.
The bug works good at sunny days or under a halogen lamp like in the video.
https://plus.google.com/u/0/photos/105524160134468558512/albums/6077963622923961297/6077963628317043842
This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/solar-bug