Possible Clues:

• '90s game disc
• Faddish '90s disc
• 1990s fad item
• Fad disc of the '90s
• 1990s fad disc
• Collectible cap
• Collectible disk of the 1990s
• Awesome, on Twitch
• Collectible cap of the 1990s
• Faddish disk of the '90s