DIY Colorful Slime

Teach preschool has a very simple recipe for making what she calls rainbow slime using only Elmer's glue, liquid starch and food coloring.

Good for ages 3 and up.

Get the instructions here:
http://www.teachpreschool.org/2012/03/rainbow-slime-in-preschool/

Learn play imagine has a similar tutorial with the same ingredients.

Get the instructions here:
http://www.learnplayimagine.com/2014/02/rainbow-slime-recipe.html 

Fun at home with kids makes a polka dot version.

Get the instructions here:
http://www.funathomewithkids.com/2014/06/polka-dot-slime.html 

Growing a jeweled rose uses kool-aid.

Get the instructions here:
http://www.growingajeweledrose.com/2014/02/edible-slime-recipe-kool-aid-slime.html

Left brain craft brain uses thermochromic pigments to make it change color with temperature.

Get the instructions here:
http://leftbraincraftbrain.com/2015/04/23/heat-sensitive-color-changing-slime/