Memento Mori
(to be viewed from approximately six inches away)7 x 9 x 2"
two-way mirror, motion detector, strobe lights, plastic skull, picture frame, AC power plug, transfer lettering

After completing the extremely time-consuming
diorama triptych, I wanted to do something easy. This took me two days, and my total cost of materials was fifty cents; that's what I paid, at a flea market, for the Halloween decoration that provided most of the necessary parts. Everything else was salvaged from my garage.
I ditched the batteries and added a transformer with a socket and removable plug, an old picture frame I've had for 20 years, and some transfer lettering and scrap plexiglass to build a box behind the frame. I also stripped the cheap paint job from the injection-molded plastic skull, and did a combination airbrush / ink wash. The AC power lets you keep it on as long as you want. When someone breaks the motion detector's range of four feet or less, strobing incandescent lamps reveal the skull for a few seconds.

For being only two inches deep, it has an uncanny sense of depth behind the mirror. And as the title indicates, if you're at the correct distance, it seems to provide a real-time X-ray of your head. I dig it.
This is a piece I've wanted to do for about five years, ever since reading instructions to build one in a reprint of a circa 1900 stage effects book. My plan was to use a full-size cast of a skull, knock out a hole in the wall behind the mirror to make it more unexpected, and have it activated by a pressure-sensitive floor mat. This way of doing it was much simpler.