I did a quick flyer design, printed 50 pages out (4 on each page), cut them out and headed off to uni. On my way home while listening to a podcast (Joe Rogan Experience!), I put them in the mail boxes which only took me an extra 20 minutes from uni to home.
The next day I woke up to 77 hops and 5 sales!
This is the most amount of money I've made marketing, so my plan now is to expand and cross off the streets as I do them.
PS. Don't do this in America