How can I create a beautiful stained glass effect using glue and food coloring?

To create a stained glass effect using glue and food coloring, first outline your design on a clear plastic sheet with glue. Then, fill in the spaces with different colors of diluted food coloring. Allow the glue to dry completely before peeling it off the plastic sheet. Display your finished piece in a window to let the light shine through and create a beautiful stained glass effect.