Make a basic version of Mod Podge at home by mixing water with glue or flour. Add glitter, varnish and coloring to the Mod Podge to create different finishes. Homemade Mod Podge is not as durable as the store-bought variety, but using a spray-on acrylic sealer can create a more durable finish once the project is complete.
For Mod Podge made from glue, begin with an 8.5-ounce jar. Pour 8 ounces of craft glue and 4 ounces of water into the jar. Acid-free scrapbooking glue is durable and less likely to turn yellow; warm it in the microwave to make it easier to pour.
At this stage, add 2 tablespoons of water-based gloss or varnish, if desired. This gives the Mod Podge a glossy finish, but this step can be omitted; the Mod Podge then dries to a matte finish. For a sparkly finish, add glitter. For color, add a few drops of food coloring. Close the jar and shake vigorously to mix the Mod Podge together.
To make flour-based Mod Podge, mix 1 1/2 cups of flour, 1/4 cup of sugar and 1 cup of water in a pot. Whisk everything briskly, and then heat the mixture over medium heat, continuing to stir. Once the mixture has thickened, remove it from the heat and pour it into a jar once it has cooled completely. This Mod Podge needs to be used within two weeks of making it.