Open console (~ or ').
Type player.additem ItemCodeHere #
# = Quantity of item you want.
ItemCode = Code listed below.

Cheat Effect
Madness Greaves Matrix 0001F3D1
Madness Gauntlets Matrix 0001F3D2
Madness Cuirass Matrix 0001F3D3
Madness Claymore Matrix 0001F3DE
Madness Bow Matrix 0001F3D4
Madness Boots Matrix 0001F3D6
Madness Axe Matrix 0001F3EE
Madness Arrows Matrix 0001F3D5
Madness Ore 00012D33
Madness Sword Matrix 0001F3CD
Madness Shield Matrix 0001F3CE
Madness Helmet Matrix 0001F3CF