Marvel Guardians of Galaxy Vol. 2 Groot Smudge T-Shirt He may be a creature of few words but his smile will win you over on the Marvel Groot Guardians of Galaxy Vol. 2 Smudge Black T-Shirt. The adorable baby Groot is displayed with a big smile on his face and an artistic smudge style surrounding him on this fun black Guardians of the Galaxy Vol. 2 shirt. 100% Cotton.