We started with one printer that my son (11 years old) got for his birthday in December. He started printing for others, and his printer was soon running 24/7. We came up with a business plan to pay for a 2nd printer, which was our turtle sandboxes. We started a social media account (managed by mom) and put it out there that we had a goal to sell 30. They've taken off and so mom designed more sandboxes and has had to take a more hands-on role in the business to keep up with demand. We also print other things that we think are fun and would sell.