OK, so I don't actually have a recipe.
'Twas the day after Halloween, and there I was in the lunch room, looking at a plate of fun-size Reese's Peanut Butter Cups, and my twisty little mind started playing with it... Reese's Peanut Butter Cups, Reese's Pieces, Rhesus Pieces, Reese's Canned Monkey Brains....
I know there are human-sized brain-pattern jello molds out there. Now I need one in monkey scale -- or maybe a cluster mold, like a muffin pan. Then I need to figure out how to mold tofu (or whatever). Little vegetarian monkey brains, just the thing to include in soup or salad for that truly memorable Halloween party!
Hmmmmmm... make an original monkey brain pattern out of wood or clay; make a rubber mold; cast a bunch of plaster brains; vacuum-form the gang mold. Could work! Another project For My Copious Free Time.