E.B.
well, I don't know much about Slugterra, but I love food so I looked it up. Here are some ideas:
Apparently the characters are split up according to the elements (Fire, Water, Air, Earth, Light, Dark, Freak, Metal, Toxic, Ice, Plant, and Electricity). So you could make some foods and label them with these elements. For Fire, have salsa (mild for the kids but with bright colors from the tomatoes and yellow peppers), and for plants, corn tortilla chips to go with the salsa. Water and Ice are pretty easy - a big punch bowl with lots of ice cubes and water (maybe tint it blue). Air - how about air-popped pop corn, or cotton candy (you can buy bags of cotton candy already made) or marshmallows. Light and Dark, how about oreo cookies? Or any other food that's light and dark, like nutella on white bread squares. Toxic, some kind of sour candy. For Electricity, pop rocks candy. Freak, hmmm. How about gummy worms? Maybe you could have the worms poking out of fresh apples (just poke a hole in apples, big enough to stuff the worms in; apples will also give the kids some nutrition and that would be 'freaky') or cut apples or bananas and spread some peanut butter on them. Have the worm 'crawling' out of the peanut butter. Or you could do that with peanut butter on graham crackers, with the worm crawling out. Metal could be Hershey kisses in assorted silver and gold colors. For each food group, print a picture on a computer of the main character or the slug or the main logo of the show, and label them with the element. You could just put the various treats out with the slug element page beside each one (maybe laminate them so they won't get soggy or ruined). This wouldn't be a lot of work, besides poking holes in the apples or making the fruit or graham cracker sandwiches, and making or buying a salsa. I would choose a really neutral cheap plastic plate (Dollar Store), preferably clear, so the food treats really stand out. Hope this triggers some ideas for you!