This is a really simple portable guitar amp project you can complete in an afternoon ; with the parts you need at hand. I used an old surround sound speaker as my enclosure, and used the speaker. The unit also has 5 tone settings to allow you to go from clean to gritty.
if you are thinking about building one of these, see my newest addition first based on the 'Little Gem' amplifier, using a few more parts. It sounds much better.