Maybe you should also add some paint cannons to your motion sensors, to make 'pretty pictures'
I often attend plant auctions over in Perthshire, they sometimes have some weird stuff, a few years back they had an 8 foot tall Buddha statue ( you know, the little fat guy with the badly head) that wasn't getting a bid, I was really tempted to buy it, take it home and install it up on the hangar roof with LED's in the eyes and a spotlight on it triggered by the motion detector. Now that would have scared the **** out off them.