Magic Armor and Weapons

*These actually come out of the "Three Days to Kill" module from Atlas Games. But to provide game balance, my group provided the following improvements as well as what prices, ect. to recreate and sell the items.

Ther'iat's Whirling Blades of Death

This is a +5 Crescent Knife that still does 1D3 damage with a critical hit range of 19-20 x2 and instead of the normal two attacks per round, the weilder makes up to four attacks with one of these blades.
Caster Level: 6th, Prerequisites: Craft Magic Arms and Armor, haste, keen edge, Market Price: 200,000 gp, Weight:1 pound.

*Sleep Arrow 2

A variant of the Sleep Arrow, these arrows, when used; on impact against any surface cause 2d4 Hit Dice worth of targets within a 15 foot radius to fall asleep for three minutes. A Will saving throw of DC 13 negates the effect. Those with lower Hit Dice are effected first. Once used, the arrow cannot be reused.
Caster Level: 5th, Prerequisites: Craft Magic Arms and Armor, Sleep, Market Price: 250 gp, Weight:--