The Heffley-Midas Touch

Everyone knows the story of King Midas, and that's basically what this spell is. If this spell is prepared for the day, anything the character touches will turn into gold. However, if anyone succeeds a perception check of 13, it will be revealed to them that what the item that was touched has turned into is not gold, but instead is fake gold, which if sold will be worth next to nothing. If the the perception roll is greater than 24 or if anyone tries to bite the "gold," it will then be revealed that this gold isn't gold, nor is it fake gold, it's just some cheese that, if not kept cold, it will begin to mold the next morning.