Dungeongram

You send a message to a creature of your choice. The recipient must be a creature known to you and on the same plane of existence as you. The message can be up to 10 words long, or it can be a crude drawing.

You take out a piece of parchment, ink and quill, write out the message and think on the person it is intended for.  You then speak the word "send" and the parchment vanishes.  The message appears to the recipient as a small winged scroll.  It will hover in front of them until they take it. Once it is read, it vanishes in a puff of smoke, but the recipient can recall its contents perfectly for the rest of the day.