ThunderCats is one of the greatest animated series from the 1980s, and now the series' logo gets a retro tie dye look on this t-shirt! The ThunderCats battled the forces of evil on their hit animated series. Whenever the ThunderCats were in danger, Lion-O would lift the Sword of Omens and say "Thunder, thunder, thunder, ThunderCats. Ho!!". When Lion-O would let out this battle cry, the Sword or Omens would release the logo seen on this t-shirt into the sky. This symbol would summon the other ThunderCats, who were unstoppable when they were united!