A Pair of Brain Puzzles

These two homemade brain puzzles should keep you occupied — if not thoroughly frustrated — for hours, days, even weeks!

brain puzzles - fig 2, camel and needle back side view
On the back side of the puzzle, feed the ring through two loops, then pull the center loop back through the center hole. Now, pull the ring back through the center loop. Both rings should hang on the left loop. Follow this same sequence to put the puzzle in its original form.