Which M&M color is the tastiest? While some would argue they all taste the same, you'll be ready to make your case for yellow when you show up to the party wearing our Adult Unisex M&M's Yellow Costume. With this set, you will receive everything you need to rip open a bag of everybody's favorite chocolatey snack and spread a little M&M cheer. Featuring a bright yellow classic M&M foam tabard tunic, you are doing to have your tastiest night yet when you are sporting this awesome look.