Your time is valuable. One method to make money on your laser engraving projects is to charge at least a dollar a minute for machine run-time. If it takes 25 minutes to laser engrave an item, then that is $25 for machine run-time. In addition, you want to double the price of your product; if your product cost you $10, then you want to charge at least $20 plus your machine time. Some people charge for the design setup as well, which they charge about $60-$100 an hour. Shipping is also a major cost to keep in mind.
-Captain Jim McCreary, LaserSketch