well you could add an enhancement that makes the hologram a hard-light hologram thus able to trigger traps. or instead of fading it could just drain energy
I definitely support the idea of a hologram. But I think there should be two versions. A: There's the close distance hologram, that is movable and is essentially a little shock conduit if people attempt to attack it. B: A proximity mine, mayhaps looking like its ready to roll against you but then detonates in a cloud of noxious vapour / metal shrapnel / acid / etc. But that's just my idea on the item.
