Bunny Dung Fly

Note: 
Coat the dung body with poly or other durable coating.  If you are not
fortunate to own a bunny yourself, or too lazy to hike the forest in hopes of
getting lucky, find a friend with a house bunny.  I'm sure they would gladly provide you with
plenty.  

 Although this
looks like a cased caddis it is intended to be a novelty fly.