My kids want to go all out with Christmas decorations this year?

THey want to make our house look like a life size gingerbread house. It's already a golden brownish color. So what are some ideas that we could do for other decorations. We're going to hand make mostly everything. So what kind of materials could we use to make :gumdrops, hershey kisses, er scotch candies, peppermints, candy canes, icing, and anything else you might be able to come up with