Another interesting idea would be to make a mobile game (even a very basic re-skinned asset flip would work), allow for loot boxes, loot crates, or even just an

Another interesting idea would be to make a mobile game (even a very basic re-skinned asset flip would work), allow for loot boxes, loot crates, or even just an ingame store to straight up "pay $x to get item y re-skinned with z color scheme". Give your customer a digital receipt and have them produce the confirmation number when meeting up to take possession of the illegal goods. This doesn't solve the problem of giving two otherwise disconnected parties a legitimate and believable reason to meet up, but it would make a fairly flexible payment system for dealers. The type of loot box/item bought could correlate to the desired product and the number purchased could correlate to the desired dosages. There are probably all kinds of other issues with this; I haven't fleshed the idea out much, it's just something that struck me when reading your comment :).