PHILADELPHIA (CBS) – It appears “big” isn’t good enough, McDonald’s is coming out with three new Big Mac sizes.

Grubhub Will Deliver KFC And Taco Bell. Its Stock Is Soaring

They’re the “grand,’ the “big,” and the Mac “junior.”

But wait, there’s more.

You could win a $12,000, seven-layer, stackable ring called the “Bling Mac.”

Eagles Fans Bring Urns, Scatter Loved Ones’ Ashes At Victory Parade 

McDonald’s is giving away the 18-karat gold, gem-encrusted version of its classic sandwich.

For a chance to win it, tweet out your love for the Big Mac using the hashtag #BlingMacContest.