A perfect day in Printer Island is about the be ruined by an eruption of Mount PLA!
This thing is a volcano, which uses an ultrasonic mist generator to bring it alive. The one used in this project was this:
Instructions are simple, print the shell and the base (alternatively you can print the included single print, to save time as it needs no support for the neck of the volcano), insert the fogger and glue the base to the shell. Add water and let the lava fly! The Orange glow is made by the shining a light though the bottom, or you can opt for a fogger which has LED's built in.
Keep in mind this creates a lot of moisture to the surrounding area, so use a plate or similar under it!