BagOfNothing.com

The color changing beverage lid is the worlds first visual indicating lid system.
• Imagine a coffee cup lid that was smart enough to communicate to your client.
• A lid that glowed when it was hot, warning the client and all other pedestrians when being transported.
• A lid that communicated to your client that their beverage was fast becoming too cold to drink.
• A lid that showed that the lid had been correctly applied.
• A lid that offered a new media for advertising and branding.
• And a lid that could Speak every language in the world.

Here is the official website.

But now you can order your fantasy football championship ring with them as well.