I am not sure what you are asking so please forgive me if my information doesn't answer your question. I was planning on having the M&Ms exit a mason jar through a funnel that is the approximate diameter of the candy. That way they will stack up in the funnel and each turn of the motor will sweep one of them into a cup that my student will be holding.
I want to make the body of this thing out of wood with the jar and funnel held inverted so that the end of the funnel is held just above another wooden platform where the motor is attached.
Does that make sense?