Step 1: Learn how to make a long exposure light doodle
for this test i used a Panasonic DMC-LZ5 in the "STARRY SKY" setting with a 10 second delay and a 30 second exposure time. this is a one man show so i must allow enough time to hit the button and get the doodle complete before the shutter closes. the light source is a simple L.E.D. keychain thing.