Long after Dad 76 became a meme, Blizzard finally broke down and played to what the fans really wanted out of Soldier 76 in the recent rendition of the Summer Games event. A number of details stand out to make this skin a gem among Soldier skins, but it's the pure simplicity of it that will make it a hit at your Halloween party.
Soldier 76's original design isn't too fancy of course, but it is a lot trickier to mock up and make everything that identifies him (e.g. his visor, jacket, enormous gun). With this skin, you could ostensibly tote around a Super Soaker or a coffee mug as your weapon of choice and no one would bat an eye.