Step 3: Or use Live Trace
You need an image, which you can drag, or copy and paste into Illustrator.
In Illustrator, go to menu Object>Live Trace>Tracing Options.
When the dialog box pops up, check "on" the preview feature.
Slide the threshhold number up and down until you get an image you like.
Keep it simple! The more lines and intricate shapes the laser cutter has to cut, the longer it takes and the more it may cost, if you are paying a laser cutting shop.