I saw this in a garden in San Francisco and I decided I wanted one! This is a really easy 3 step instructable.
Step 1: GLUE STONES
collect some stones long and thin, and one bigger.
glue the little stones perpendicular to the big one, like in the photo.
Step 2: PAINT EYES (white)
make 2 little dots on each stone with white waterproof paint
Step 3: PAINT EYES (black)
make 2 little dots on each stone with black waterproof paint
Step 4: DONE!
this thing look really nice in the garden