This is cool!  I didn’t realize it existed.  The Snap Circuits Green – Alternative Energy set is marked down to $36.79 currently (reg. $79.99).  That’s a savings of 53% off list price.  Remember that prices may change.

• Learn about “Green Energy” options
• Build over 125 projects investigating alternative energy strategies
• Includes full-color manual with over 100 pages and separate educational manual
• Contains over 40 parts; Features: Hand Crank Solar Cell FM Radio Energy Compartment Rechargeable Battery Windmill Clock Analog Meter
• Compatible with the Snap Circuits family of electronic learning kits