This is a craft where the resulting shape is almost never what you want it to be. Still, it's pretty fun anyways! They are great for holding junk and not so great as ice cream bowls. Also, you can get cheap/funnily titled records at your local thrift store.
Preheat oven to 150 degrees and find a good oven bowl. Think of it as the mold for the record bowl. Place record on top of a oven bowl and put it in the oven for about 5 min. Try bending it if it's not the right shape but don't try bending too hard when it's not heated or it will break. The vinyl hardly gets hot at all so don't worry about burns. Then SHADA! Now go make your friends jealous of your hipster level 7ness!