Writing and reading a letter
Well, place a piece of paper (the default) on a surface (preferably a table), there will appear a piece of paper (node), right click on it, write whatever you wish and press enter, the piece of paper will become a letter (node), pick it up (dig the node) and you'll get a letter (item).
Use the letter (left click) and there will appear a chat message saying what's written on it.
You can place the letter again if you like.
Didn't find a limit of words or lines. If you can find a limit please post.
Editing a letter
To edit a letter that's already been written you need an eraser (tool). First leftcklick, then rightclick on a letter(node) while holding an eraser to open the menu where you can edit the message.
You can only change what's written on a piece of paper if it is either not signed, or signed with your playername (in singleplayer your name's singleplayer). Be careful to spell the name right.
You can sign the letter using any name you want. Did it that way so you can use signed letters for an adventure map or for role playing.
Message in a bottle
You can create a message in a bottle by "digging" a letter while holding a glass bottle (vessels, part of vanilla minetest).
By using the message-in-a-bottle (leftclick) you place the letter inside and you'll get an empty bottle back.
You can also place the message-in-a-bottle (but isn't that decorative).
R U sure U want a screenshot of a piece of paper & some text?
Bas080 - for mentioning the mailbox mod
Dan Duncombe - for motivating feedback
DeepGaze - for posting an interesting idea
Ikishida - for motivating feedback
Josh - for motivating feedback
Mito551 - for inspiring me to make a screenshot story
PilzAdam - for clarifying what was wrong with the license
Zeg9 - for review
all who made Minetest, modding and this mod possible
Dependencies: default (minetest, in other words: none)
Recommended: inbox or mailbox
https://github.com/Mossmanikin/memorand ... master.zip
License ev'ryt'ing: WTFPL
Note: if anybody downloaded version 0.0.1: license for memorandum_letter.png is CC BY-SA