Press Packer William tells us about the dress he designed for royalty - and how it got the seal of approval from the Duchess of Cornwall!
His school was set a challenge of coming up with a dress or jacket that's fit for a princess or queen.
So William designed an outfit based on the environment and recycling. He said he was inspired by Lady Gaga!
Watch William see his dress come to life at a special catwalk show in front of the Duchess of Cornwall - and see what she said about it!