Concept revisited 'Spring Action'

This is a plasmacut steel batarang. (4x10) It folds in half, and is held shut by 2 small but very strong rare earth magnets. The sping loaded batarang quickly pops open when you pry the wings slightly apart with a finger.

I still looking at the notion of fright but i want to push the emotion further. By using springs, wire, strands of elastic and possibly magnets, i will create a volitile creature that cyclicly returns to its original state. the range in reactions and movement will speak of the diversity within species on the planet.

I need to do lots of research into materials and collect springs.