A presumably very blood-covered happy face sticker.
DM: Okay, what are your weapons guys?
Bard: I have a shortsword but since I gave the good old DM two apology cereal boxes, I’m getting a heckin’ scythe.
Druid: I have a cescent moon staff with ivy vines on it!
Ranger: I have a bow that has two empty slots for crystals, and once those crystals are found and placed in the slots all the arrows become flaming arrows.
Barbarian: I have a greataxe.
Barbarian: ….It has a happy face sticker on it.