Wand of Magic Missiles
1-3 charges shoots 3-5 magic missiles
The wand has 7 charges, and regains 1d6+1 at dawn each day. If the last charge is consumed, there is a 1 in 20 chance that it crumbles to dust.
Using one charge fires 3 magic missiles (1d4+1 damage each)
Using two charges fires 4 missiles
Using three charges fires 5 missiles