If you are talking about family or VERY close friends, it's probably best to barter or have them cover your costs. As soon as you exchange product for money, you are in business, and that road leads to compliance with health department and business licensing rules, sales tax payments, liability insurance, etc. etc.
If the money involved is more than a couple hundred and you want to remain on the down-low then at the very least buy a liability policy. It's scary how fast the bonds of family and friendship dissolve sometimes when somebody gets sick or injured and blames you.