Paint the outside of the bottle cap green. (This will be the turtle's shell.)
Cut out a green paper circle. Make it just large enough to cover the bottom of the bottle cap.
Cut out a green paper tail.
Paint two cotton-tip swabs green. Break or cut each swab in half. (These will be the turtle's four legs.)
Snap off an end of the ice cream stick for the head.
Glue on peppercorns or beads for eyes.