(If you're a Thomas the Tank Engine collector, please see my previous post) Anyways,I don't have a New 3ds, so I can't post this in the actual Mario Maker community, but if you want to have decorational water on land-based levels, put down Ice blocks, and then shake the Yellow Platforms to turn them Blue. Place these over the Ice, and now you have water. It isn't functional, but it resembles water