Pour each sand color into its own aluminum tray.
In a well-ventilated area (highly recommend being outside) spray each color of sand with the Scotchgard fabric spray. Use the spoon to incorporate the spray into the sand.
Repeat until all the colored sand has been strayed with Scotchgard.
Leave the sand in a well-ventilated area for 24 hours, stirring each container of sand a few times while it dries.
Fill a container with water. Pour or spoon the sand into a funnel, and watch as it floats to the bottom of the water.
Layer the sand colors to create a unique design.