After calling up the game console with the tilde key (~), type:

summon klingons.

where can be:

Daktagh (weapon 1)
Disruptorpistol (weapon 2)
Disruptorrifle (weapon 3)
Assaultdisruptor (weapon 4)
Spinclaw (weapon 5)
Grenadelauncher (weapon 6)
Rocketlauncher (weapon 7)
Sithhar (weapon 8)
Particlecannon (weapon 9)
Batleth (weapon 10)
Cipherkey
Genetickey
Palmkey
Passcardkey
Retinalkey
Combatarmor
Combatgoggles
Communicator
Gagh
Tricorder
Vacsuit

This is only a partial list of the items that can be summoned in the game.