Call me nostalgic, but I had to break my non-posting slump for this.
Hi-C is bringing back Ecto Cooler, the amazing Ghostbusters themed citrus flavored/green colored drink. It last debuted in 1987 and was discontinued in 2001; since then it has seen many people attempting to replicate the elixir (pretty sure I've posted a recipe on here).
It will come back on May 30th to promote the new Ghostbusters movie, and you can follow the action at Ecto.cool before it is released. Apparently the cans will be similar to Coors Light's blue Rocky Mountains, and slime will turn green when cold.