Fun Wallpaper Ideas for a Kid-Friendly Bathroom

We are updating the kids’ bathroom, and I want to make it fun and playful. I found some wallpapers with cartoon sea creatures and rainbows that look really cute and colorful. I think they would make the space more exciting for the kids. But since toddlers can be messy, the wallpaper also needs to be easy to clean and strong enough to last. Do you have some others wallpaper ideas that work well in a kid's bathroom?