Related Clues:

• Tiddlywinks pieces, e.g.
• LPs, informally
• Spinal parts
• Something for the record?
• Frisbees or checkers
• 45s, e.g.
• Album material
• Home-siding material
• Saucers and such
• Projectiles in a golf variant
• Jewel-case inserts
• Classic record material
• Platter matter
• They're round and flat
• Flat circular plates