For the plant cell, I used Katrina's idea at Baking and Boys! and used a cookie pizza. We spread out the dough on a baking sheet to make it rectangular, just like plant cells. Sam then used candy to represent the various cell components. You could use whatever you have on hand.
Cell Wall-pizza pan
Cell Membrane-chocolate frostingmitochondrion - hard orange candy
Ribosomes-M & M's
rough endoplasmic reticulum - (rough ER) -Gummy wormssmooth endoplasmic reticulum - (smooth ER) -Candy Sticks
Cytoplasm: Cookie Dough
Amyloplast: gum drop
Chloraplasts: Green "chews" (like taffy)