Avery Monsen, who illustrated all 100 emojis and created the Vine, told BuzzFeed his three favorite in the series are "A Box Which Must Never Be Opened"...
"Three Worms Pretending To Be One Long Worm" (not to be confused with "TWO Worms Pretending To Be One Long Worm")...
And "A Spectre Rises From A Seven Layer Fiesta Dip."
But they're all seriously amazing! Here they are in all their glory.