The Grimm Brother's tale of The Frog Prince is a classic. The Prince is hidden just hanging around, so find him and give him a kiss. My grandcacher hasn't figured out yet that his tub toy has been "borrowed" and camouflaged for your enjoyment.
Don't forget to bring a writing utensil to sign the log. To make this one dog muggle proof, he is much smaller now, and no longer on the ground. Happy hunting!