Growing crystals doesn't have to be a tedious, time-consuming process. It's true perfect specimen-quality crystals can take some dedication to produce, but if you want crystals and you want them now there are projects that give instant gratification. In addition to being quick, these projects are also safe for kids.
This project will ice a pan with a sheet of crystals within seconds. Very fast, very cool.
The instructions, as written, call for evaporating the crystal solution on construction paper, but I prefer to use thinner and less-colorsafe tissue paper for quicker and brighter crystals.

Anne HelmenstineThese crystals grow overnight, but if you start them right before you go to sleep, it's almost as good as instant crystals.