We also got Lunarkeys a bag of blue colored M&Ms, with the above artwork printed on some of the candies.   jakkal did two versions, one with pressure marks on the left, as if Keys was trapped inside, and one without pressure marks, on the right.

While I really liked the design of the one on the left, given the limited space on M&Ms candies, I ultimately used the one on the right because I thought it would print better. Keys's reaction was great. :>