Lay down several sheets of newspaper to protect your work surface. Put on rubber gloves to protect your hands.

Spray the inside of the non-stick cake pan with cooking spray to ensure easy removal of the concrete once it dries. Set aside.

Add about 8 - 10 cups of quick concrete to a mixing bucket (follow the instructions on the quick concrete mix bag). Typically, this involves adding 1 - 2 cups of water to the mix. Stir thoroughly with a paint stir stick or large spoon until the mixture reaches a smooth, pancake batter-like consistency.

Carefully pour the mixed concrete into the prepared cake pan, filling it to about 1 - 2 inches thick. Tap the sides of the pan gently to remove any air bubbles and ensure an even surface.

While the concrete is still wet, press the decorative glass gems/stones into the surface. Arrange them in any pattern or design you like. Ensure the gems are securely embedded in the concrete but not fully submerged. Allow the concrete to set and dry undisturbed. This can take 24 - 48 hours, depending on the concrete mix and environmental conditions.

Once dry, gently flip the cake pan over onto a flat surface to release the stepping stone. If it doesn’t come out easily, gently tap the pan's bottom or run a plastic knife around the edge.

To seal and protect the stepping stone, apply a coat of Outdoor Mod Podge over its entire surface. Allow the Mod Podge to dry completely before placing the stepping stone in your garden.