I first, asked the listeners what the object was and then told them. Here, I have placed it together so that you, will be able to see that it was a half dollar.
WARNING: I am not responsible for any damage done with this trick to anybody or anything. What is about to be shown can only be done in LibreOffice and NOT Powerpoint.
To do this all you need to do is download Libreoffice.(http://www.libreoffice.org)
Then, place a picture into LibreOffice Impress. Then right click and go to convert on the menu and go to 3D rotation object and click. You have now converted your image into 3D. To adjust, simply go back to the menu and go to 3D effects. Click and you will find yourself in a window with a bunch of adjustments. Change the shape to your heart's content.