I found this old, gold, plastic-framed mirror at the thrift store. I removed the mirror and spray painted the frame pink. Using the mirror as my "pattern", I cut a piece of foam board the same size as the mirror. I added to layers of batting and then fabric. I actually used duct tape to secure the fabric to the back of the foamboard.
Because the bulletin board is "puffy", regular tacks wouldn't stay in place, so I used corsage pins as tacks. They are extra "fancy" because they have a pearl tip. The corsage pins can be found in the wedding section of your local craft store.