I upload a couple of my own super mario maker levels; so if you have a copy of the game and would want to try them out, here is the ID numbers. Searching for One Piece: 2D4B-0000-0085-9BC1 Block Madness: 0286-0000-00AD-96C6 I will say that these levels are a bit difficult at first so good luck.
Might try them later. My girlfriend's the one obsessed with the game, but I like trying out new levels.