Empty spray bottle
1 pint water
1-2 Tbs corn starch (more will give a stiffer starch)
2 drops essential oil (optional)
Pour the corn starch into the bottle using the funnel. Tap down if needed. Add water and essential oil. Replace bottle lid and give it a good shake. (I have found on my bottle drips just bit during this part from the force of shaking. I simply cover the spray spout with my thumb to minimize drips.)
As with anything new, if you try this, please test first on scraps.
This was copied from the blog "from the blue chair".