Build the circuit
Connect the bits as follows: Power + split + (pressure sensor + servo + servo) + (Makey Makey + wire + long led). Set the servos to turn mode.
Attach the bell and scut
Hide the pressure sensor and the servos under the ribbon collar and attach one servo to the bell of the bunny using a paper clip or another piece of wire. Using some brown pipe cleaner create a nice scut and attach it to the second servo. Hide it under some easter grass near the rear end of your bunny. This way every time you touch the pressure sensor the bell rings and the bunny wags its tail.
Plug in your carrot
Attach an alligator clip between a carrot and the contact which corresponds to the output bitsnap you used to connect the long led.
We need earth
Take a second alligator clip and connect it to an earth contact. The other end of the clip shall be connected to a piece of aluminum foil which can be hidden somewhere near the snout of the bunny.
Take a small drill or screw driver to make two holes. The first one is to get the led into the bunny (on the opposite side of the blinking eye; this should be hidden rather good). The other one is made where the eye is. Position the long led as shown in the image above.
Connect a battery, turn everything on and see your bunny ring its bell and wag its tail while happily twinkling its eyes.