My Guitar is free blogger templates related about business and very good for sell a product, but this themes not have feature shopping cart and you can find code or some plugin to do that. Blue and gray is main color for background this themes, ads spot and slide for feature post very good to see.
Designer : Buymythemes.com
Properti : Ads Ready, Blue, Buy My Themes, Fixed, Right Sidebar, Slider, Two Column
Download "Blogger Templates My Guitar" here | Live demo here