Of course, there is the iconic Snow White's Wishing Well in Snow White's Grotto to the right of Sleeping Beauty's Castle. The money from this wishing well is collected periodically and it goes to the Children's Hospital of LA.
Over in Toon Town, Minnie Mouse has her own wishing well. Minnie posted a special message on the front of her wishing well that says,
Welcome to my backyard well,
A secret wish you now must tell,
My reply will echo clear,
To all my friends so near and dear!
So there you have it! Three wishing wells at Disneyland. Just a silly little tidbit I felt like talking about.