Oooh that’s awesome you’ve already got some interest, ka pai e hoa (well done comrade). Flier drops actually do work pretty well if worded well. As long as you don’t word it like a Nigerian scam you should be sweet as lol. Not everyone will get in contact, but a few might
Bernstein started it way back in the day and it has been a steady process of decline ever since. In a short, glib answer to a serious question