Draggable item with a delete button

This may sound simple, but I am totally stuck and have been for some time now, please could somebody please help - I’ve tried lots of forums but got no response. Do I smell or something?

I’d like to create a movie that has a (rectangle) movie clip on the main timeline underneath this also on the main timeline is a set of three buttons, circle, square, triangle for example. When each of these buttons is pressed a shape (circle, square, triangle) loads into the (rectangle) movie clip and can be dragged around within this window. Inside the (rectangle) movie clip is a trashcan icon that when a shape is dragged over the icon it is removed.

I will paypal donate to anyone who can respond with an example or tutorial - I am super desperate here.