Dress up snowman game....PROBLEM!

Hello I am trying to do a dress up snowman card. I am just doing a mock up to see if i want to do will work. Here is what I want to do. I want a slide out menu with different object in them. One for hats, one for arms, one for buttons, then you grab a hat and drag it onto the snowman. The way I set it up the object slides back into the menu… how do I get this to work correctly?