Now we're definitely into trading; whether it's profitable or not is a side issue IMHO.
Product liability insurance, disclaimers ("not suitable for children under x years of age"), paint / varnish / finish toxicity tests, and so on.
Years ago my late father made little chairs, stools, desks, dolls' houses (with furniture!), garages, cradles, barrell-top chests, play-pens for friends and family as gifts and as his hobby. In these times of 'elf and safety' our lives and his would have been much the poorer due to what I believe is over-regulation.