If you like chocolate then you will like M&M's. And, if you like M&M's candy you will go nuts over M&M World. It is located next to the MGM casino just a few blocks from Tropicana on Las Vegas boulevard.
In a nutshell, this store is all things M&M's. Shirts, shoes, hats, bobble heads, pens, wallets, backpacks, and tons of different candy configurations.
This is a really neat experience that I try to stop at every visit to Las Vegas. Why? It's just darn fun and takes me back to my inner child.
Be sure to stop in and get you sum.
Enjoy!