Walmart offers the WowWee Paper Jamz Style 1 Toy Pro Guitar
, model no. 62881, for $7.46
for shipping. (Free Site-to-Store pickup is also available.) That's the lowest total price we could find by $2. Sales tax is added where applicable. Features include USB connectivity, 14 active frets, two pre-loaded songs, and more. It requires four AA batteries (not included) and a free Paper Jamz Pro app can be downloaded to add your own music.