What is something sweet to make out of duct tape?

My mom and dad went to Aruba and I just got interested in duct tape! I want to make them something for their return, but I don't know what! I have duck brand duct tape. Colors: light blue, dark blue, neon green pink and orange, purple, white, black, silver, yellow,. Prints: Pinkish orangish yellowish tye die, blueish redish whiteish tye die, Digital Camo, a little left of zebra and lepoard! Please think of something 10 year old easy! Not easy, but not expert.