For a short time, when i was in highschool I'd sell synthetic cannabinoids melted onto foils. A couple days worth or so, sell that for 5 bucks. Word starts spreading and tolerances build, you start making money, good enough for me to fund other shit at least. Not really a money maker. Considering I used to get a gram for like 10-15 bucks, it was good profit. I stopped doing it eventually because I became addicted and just wanted to use my own stash.