Help I'm looking for ideas for my sons class for bakerman. (I need to provide an creative edible activity for 20 4 year olds)

I know there are a whole bunch of creative geniuses here on cake central, and Im a little to snowed under to even think!!
An ideas would be hugely appreciated!!!
Thank you

What do you mean by bakerman?

Not sure what bakerman is but here is a fun idea to do with kids. Make dirt cups! http://www.kraftrecipes.com/recipes/dirt-cups-57763.aspx
if you have to bake something...make chocolate cake and crumble it in place of the oreos.
Maybe read a book about bugs or Charlie the Caterpillar to go along with it!

Each week one child in the class has to bring an edible activity for the rest of the class to do. It needs to be something done in class and not at home. There are no oven ect so you need to bring the stuff already baked. The kids are all 4 and 5.

I have searched the internet to no avail.

Please help

Here are some ideas I found online:
Candy bird nests-- http://www.enchantedlearning.com/crafts/edible/candynest/
Edible necklaces-- http://www.enchantedlearning.com/crafts/Necklace.shtml
Edible bugs-- http://www.kinderart.com/kitchen/ediblecrawlies.shtml
Chick cookies-- http://www.busybeekidscrafts.com/Fuzzy-Chick-Cookies.html
Fruit bunnies-- http://www.busybeekidscrafts.com/Fruit-Bunnies.html
Bunny cookies-- http://www.busybeekidscrafts.com/Brown-Bunny-Cookies.html

For more ideas just google "edible crafts for kids" or a similar phrase.

My kids love when I make peanut butter playdough.