The Legend of Zelda: Ocarina of Time Glitches

Mirror Image Epona
What you need to do is do the swordless Link cheat. Go to the mainlands and call Epona and hop on her. Assign the ocarina to a c button then use it while on Epona. Exit out of that and you should automatically be off of Epona. Now all you do is walk around and Epona moves along with you.

EDIT by Dragon: Apparently this freezes the game if weapons are used. Be careful.