A texture in the Minecraft customizable texture pack which changes the creeper's face into a humorous smile.
It's description is "HAPPY CREEPER HAPPY HAPPY YAY YAY!"

Solarpunk is a movement focused on a positive, ecological vision for a future where technology is used for human-centric and ecocentric purposes. It is a literary, artistic and aesthetic sub-genre and is also closely tied to eco-political activism. Solarpunk narratives have a distinctly positive and utopian foundation in contrast to the often dystopian visions found within other "punk" science fiction genres.