lots of john lennon songs are easy to learn, and syd barret songs are very easy too, but the best is coming up with your own music. expecially with an effects pedal, that makes it easy as hell, put on a cool effect and just hit the strings till you find an order that fits the mood and play with it.

i like going from G to E, walking up and down the b string with my little finger and index finger, and every now and then throw a C in

oh and the beatles are fun to learn too.