Here are several of our favorite toys, all of which have been kid-tested and approved, and put the 'fun' in functional! 

I like to think of MUSCLE TONE in terms of a light bulb.  The light bulb is your muscle and the electricity flowing to it is your nerves that tell the muscle what to do.  Now picture a light switch that has a dimmer attached.  When you turn the dimmer down low, the light isn't as bright because there is less electricity flowing into the bulb, this would represent HYPOTONIA.  The muscles appear floppy at rest because there is less input from the nerves flowing to the muscles.  When you turn the dimmer up to its highest setting the light is almost too bright because there is more electricity flowing into the bulb, this would represent HYPERTONIA.  The muscle appear stiff at rest  because there is more input from the nerves flowing to the muscles.  The answer to both of theses situations is to strengthen the muscles. For more information on medical terms/conditions:  http://www.nlm.nih.gov/medlineplus.html