These look WAY more labor intensive than they are. We were able to make 24 minions in about an hour and cost less than $25 to make. All we needed were: Twinkies (cut in half), candy eyes (purchased at AC Moore but available at any craft store with cake supplies), black gel, chocolate sprinkles, and silver candy sprinkles (easy to find, thanks to Frozen!).
To make these, we simply cut the Twinkies in half, placed a large "dot" with the black gel where we wanted the eyes to go and then placed the eyes over that dot enough to "smoosh" the gel evenly around the eyes to create a symmetrical black circle edge around the eyes. We then sprinkled the crushed silver candy onto the black circle and wiped away any that did not stick to the black gel. We used additional gel to create the mouths, goggles, and in some instances, hair. We also used chocolate sprinkles to stick up on top of the Twinkies to create hair.
Overall, we were thrilled with the cake! Not a baker, I bought a 1/2 sheet cake from the grocery store (they ALWAYS make tasty cakes!) and decorated it with our Minions and banner. Each party attendee received a piece of cake and Minion. It was a very exciting day for these Kindergartners!!