In this Instructable, I will be showing off two versions of this bowl. The classic style and a newer one.
Step 1: The classic record bowl
The easiest way of doing this is to set your over for 220F/100C and tossing the record in there for a few minutes. When it's completely warmed up it will have the texture and floppiness of a fruit roll-up. You can now shape it any way you want.
Other methods include dipping the record in boiling water or heating it up with a heat gun.