When I first glanced at Jaymie's picture above, I thought it was a MOSAIC.
Then the "dots" made me think of those strip candies buttons we used to eat as kids. They can be "glued" using baker's glue (purchased or made). See my "fish and loaves" mosaic note and pic below.
So of course, this got me thinking about how to make a candy mosaic, and I had a flash memory of an experiment I did last year for another lesson: creating a Starburst candy mosaic. When you microwave them for a few seconds, they become one big starburst mosaic. When it's soft, you can 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 with edible glue.
I've since thought that the mosaic could ALSO be made out of different types and colors of bread. They could be "glued" using edible glue made out of water and MERINGUE powder (a baker's trick).
BTW...there's a very famous and ancient 5th Century mosaic celebrating the Feeding of the 5000. 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.