Black Dagger

Dagger +1 (Dmg: 1d4 +1, piercing) Finesse, Light, Thrown (range 20/60)
Slim dagger with black handle can be stored in a form of a tattoo giving +1 to AC WHILE it is a tattoo.
This dagger seems to be a part of You, and changes its shape slightly once in a while.
It feels as alive, and there is no physical way of loosing it. You will wake up with it
as a tattoo after a long rest.