Coin Box

Question Boxes are items introduced in the Nintendo 3DS game Super Mario 3D Land.

Question Boxes have an identical appearance to a Question Block. Like the Propeller Box, they can be worn by Mario (or Luigi) over his body and stay with them until the end of the level. While inside a Question Box, infinite coins will pop out from it while Mario is walking, jumping or being launched from a cannon.

Mario can only use it when he hits it from below. If it is ground pounded or hit by Tanooki Mario's tail, it'll just make a popping sound effect.

Question Boxes are only found in World 8-1, World 8-4 and Special 1-3. If Mario is touched by an enemy while wearing a Question Box, he loses it. If he touches a Flagpole while wearing one, it will disappear and give Mario an extra life.

In New Super Mario Bros. 2, similar objects known as Gold Blocks appear which give Mario/Luigi much more coins than the Question Boxes.