The Fourth Floor

Crossbows
Bolo ties
Poison and other liquids in jugs
Fountain pens
Baseball cleats
Daggers, sais, jambiyas, sickles, scythes, and other cleverly hidden bladed weapons
Ninja throwing stars
Nunchucks
Blowgun and blow darts
Whips
Tekko-kagi (or “hand claws”)
Friendship bracelets