Mix concrete mix together in a large bowl.
Pour a layer of concrete into the large glass bowl.
Pour a second layer of colored concrete into the glass bowl. Place the smaller bowl in the middle of the large bowl and press down.
Mix resin together. Then pour a layer of resin on top of the two previously poured layers of concrete.
Pour a layer of concrete on top of the resin layer. Use a straw or a toothpick to adjust concrete as desired.
Allow the concrete and resin piece to dry. Once the piece is dry use a hammer and flathead screwdriver to pull the glass off of the piece.
Grind the concrete piece to shape and smooth the edges.
Smooth and polish the resin component on the piece.