For your consideration are 2 beautiful art glass coasters.  These are fused glass.   A beautiful blue turquoise color with the stripe of royal blue at the top and the stripe of clear glass that has rectangles of yellow and orange, an orange diamond shape and a green and blue circle and a band of green below that.  They are 4" square with the dimple in the center for your glass.  Also makes a good trinket dish, coin holder on your dresser. No chips or cracks.