Skiving Snackboxes are magical containers from the Harry Potter series, specifically featured in the book "Harry Potter and the Order of the Phoenix." Created by the character Fred and George Weasley, these boxes are designed to hold a variety of enchanted snacks that can help students avoid classes. The snacks inside the Skiving Snackboxes have unique effects, such as causing temporary illnesses to allow students to skip school. For example, one snack might induce a fever, while another could cause a sudden bout of sneezing. These clever inventions showcase the Weasley twins' entrepreneurial spirit and creativity.