How to beef up a Crest Spinbrush pro
Hello, first off I'm new to this site. I found it Monday and I think it's great.
A while back our local news had a tech guy on showing some new inventions with toothbrushes.
Just for fun he also had a Crest Spinbrush with some extra batteries taped around the handle which raised the RPM's of the brush.
Any idea what it would take to do this??
thank you Jethrow~