This cube craft paper toy is Mario wearing a Gold Block, the paper model is created by cubeecraft. Gold Block is golden Brick Block that appear in New Super Mario Bros. 2 [Buy the Game]. Gold Blocks appear when Mario or Luigi hit a Coin Block at least 10 times.
When this happens, Mario or Luigi can wear the Gold Block over his head, thus producing coins from it if he keeps moving, making it very similar in function to the Question Boxes from Super Mario 3D Land. If Mario or Luigi runs fast enough, the amount of coins produced from the block increases. When a Gold Block is worn, the face side of it resembles Mario/Luigi's face, as shown in the image below.
The Gold Block disappears and confetti pops out after it runs out of coins, or if Mario or Luigi is hit while wearing it. If Mario/Luigi jumps onto the flagpole while still wearing the gold block, he can continue to get coins from going down the pole and jumping off of it. [Via MarioWiki]
You can download the cube mario papercraft here: New Super Mario Bros. 2 - Gold Block Mario Cube Craft Free Paper Toy Download