A puzzle box with a twist; there's a magnet in the bottom of the hole for the pin, with panel nails in the pin to hold against the magnet. And you need a magic wand to open it. The pin was originally a standard heart, I flattened the heart so I could cut the pin in the shape of a key.
Wood: 1 1/2 X 1 1/2 inch oak
Blades: FD Polar #1 for the pin and sliding dovetail, Polar #5 for the inside void, the outside of the heart shape and to rip the 1/8" bottom.
The only tricky part of the puzzle box is the order of cutting must be followed. 1. rip the bottom piece, 2. cut the pin, etc...