I offered this for Lamar Miller & Mike James, but it never caught on, and it applies to these two:
Spaghetti & Meatballs.
Duke Johnson is Spaghetti because he can wiggle his way through traffic, just like spaghetti wiggles its way through sauce. He's impossible to tackle, slippery, just like spaghetti when you try to pick it up with your fork and it keeps sliding through the tines.
Alex Collins is Meatballs because he's the heavy hitter; he'll leave you in a coma after he runs through you, just like how you feel after you eat two pounds of meatballs. He's also deceptively fast, just like how you don't think you can handle another ball, you're feeling slow, yet you quickly polish off the last one and amaze even yourself.
