This is an example of “Lumpy Mail” which is a piece of mail with some object in it that makes you want to open it.
This example came from Self Publishing School and included a metal bottle opener.
When I got the mail I could feel it had something hard in it (giggity) so it got me curious.
When you open it there was a handy bottle opener!
“Lumpy Mail” is great because when people check their mail they often have two piles:
The ‘A’ Pile: Personal letters and stuff they want to open.
The ‘B’ Pile: Stuff you just toss in the garbage.
If you send mail that seems like it has something inside it…it’ll more often get put in the A-Pile!Visit Link