Hello Creepers! Me again. Today I am going to show you how to get Spawner Minecarts using Command Blocks! First, you need a Command Block (To get a command block, say /give <Your name here> 137 <amount of command blocks>, but if you are using the latest snapshot (1.8) then change the number 137 to minecraft:command_block), a button, and rails* (The rails is an optional choice because you dont exactly need them). Once you have gotten the materials then lets get to the tutorial! First put a Command Block and click it. You will see the Console Command gui apear. Type in the following: /summon MinecartSpawner. Once you have done that then hold in the shift key (or if you have the sneak button set to something else then just press the button you have it set to.) and place your button on the Command Block. After you have done that just press the button and WHALA! Youve got your Spawner Minecart! World download (if you want to be lazy and not do anything) click here!

*GONNA PUT YOUTUBE TUTORIAL SOON*