When I first glanced at Jaymie's picture in her Art Workshop post, I thought it was a MOSAIC, and that got me thinking about "Edible" Mosaics.
Those "dot" candy strips look like mosaic pieces. They can be "glued" or baked into a cookie. See my "fish and loaves" mosaic note and pic below.
I've also used Starburst candy to make a mosaic. When you microwave them for a few seconds, they become one big starburst mosaic. When it's soft, you can also press Skittles into it.
{{I also tried to make a stained glass piece out of "Jolly Ranchers" but the ranchers were too thick. So I've been thinking about how I could pour liquid candy that hardens (without burning kids) into a story form the kids designed in cornstarch with drawing sticks. When the candy hardens, you lift it out of the cornstarch.}}
A bread mosaic
I've since thought that the mosaic could ALSO be made out of different types and colors of baked bread. They could be "glued" using edible glue made out of water and MERINGUE powder (a baker's trick). What would you glue the bread pieces to? A pita of course.
Alternately, you could make it using RAW DOUGH of different colors, and then bake it. (Great discussion fodder for the topic of "many-one," "diversity-unity."
BTW...there's a very famous and ancient 5th Century mosaic celebrating the Feeding of the 5000 that even looks like bread! It is found at the "Church of the Multiplication" which is located at the Sea of Galilee. It's one of the earliest known Christian mosaics in the Holy Land.