Pour glue into a large bowl. Fill the empty glue bottles with warm water and replace cap. Shake the bottles to help remove any excessive glue and pour into bowl.
Stir in food coloring into glue and water mixture. I used yellow and red food coloring drops until I achieved the desired shade of orange.
In a small cup stir borax and 1/4 warm water until Borax dissolves.
Combine Borax water with glue mixture. The mixture will begin to thicken immediately but will take a few minutes to fully set. Continue to work the slime, with your hands if needed, until the water is completely incorporated.
Once slime is firm sprinkle pumpkin spice and roll the slime to distribute the spice.
Store in airtight container.