Make a trap with a smile! Seriously, whatever the statue is—an executioner, a knight, G. Gordon Liddy or one of the Olsen twins—should have a smile on its face as it swings the axes in its hands when someone walks up to it.
Detect: Per-based Traps at -2.
Disarm: DX-based Traps at -5. Failure triggers.
Circumvent: Per-based Traps at -5 lets someone find the hidden switch.
Effects: 3d+5 cutting to two targets standing next to it. Reach 1, 2.
Steal: Yes, if you can move it; you now have a statue (300 lbs.; 27 HP) with two great axes.