1) Buy potatoes in bulk and make them into vodka and sell it online as artisanal hand crafted vodka.
2) Go to a local pizza chain and buy a few pizzas. Then go to a nearby homeless encampment and shoot a video that you're a humanitarian and feeding people, give put slices and interview the homeless in exchange for a slice. Post on tiktok or social media and then ask people for donations so you can continue doing it, pocket 50% and use the other 50% to buy more and do more videos.
3) Go to drug dealers and pitch them on building a site for them where people can order ice cream or some other thinly veiled products on an ecommerce platform. Dealer can then promote their ecommerce site which is really a delivery mechanism for handling orders. Even better is getting them on to Amazon with weird or fake products that ppl order and that way they're also laundering the money too, two services in one