The 'Label This' puzzle maker
You start creating the 'Label This' with an uploaded image. This will be the skeleton of your puzzle since the other labels will be dragged on top of it.
After that, you can add as many labels as you like. Every time you add a new label, it is 'dropped' in the middle of the preview image. You then need to drag and drop this label to the correct spot in the image so that the puzzle player can later on guess correctly what the label corresponds to.