These were so simple to make and I really had to control myself to not make more then I needed. I took some pictures of the process and put together a quick tutorial.
First preheat the oven to 200.
Place an oven safe bowl (I used a metal bowl) upside down on top of a cookie sheet.
Place the record on top of the bowl and put in the oven. It doesn't take long for the record to heat up and begin to droop.
At this point it is a matter of preference and how you want your bowl to look. You can pull it out, shape, put it back in and shape some more. I used an oven mitt to create my folds. If you don't like how it is forming, just stick it back in the oven and let it heat up again. You can make your changes over and over till you are happy with the shape. It cools rather quickly once removed from the oven.
I liked how my scalloped edges came out and it wasn't hard to make at all. Give it a try!