Maybe a building where you can go in and buy paper and seals and then edit your letter and
talk to an NPC to send it to a player. Maybe even a mailbox icon?
Maybe the mailbox icon will be full of letters sent by friends?
And maybe even a quest to be able to have the mailbox icon and to send letters?
Maybe have a rule on the letter when you write it?
1. Do not put anything threatening in the letter
That's all I could think of.
And maybe take a screen shot of the letter and post it here?
I made a letter with a heart seal.

Well maybe I could of made this shorter lol!
