Mosaic glass tile is a new trend in kitchen and bathroom décor. You can cut your own glass tile to create a unique and special look. Wear safety glasses before you begin. Use a ruler to measure and with a marker, mark the tile to the size and shape you want. Place the ruler on the tile and position oil-filled glass cutters on the edge of the tile. Use even pressure as you move across the slide. Avoid using too much pressure since that may shatter the glass. Use running pliers with its center mark in line with the line created by the glass cutters. Squeeze firmly until the tile snaps.