A former Blanco Vista student outlined his name in the mosaics using pastel colors.

When physical education teacher Caroline Spradling shared a how-to mosaic using sidewalk chalk and masking tape, she had no idea the activity would spread worldwide.

Spradling sensationalized this time-consuming five-dollar activity and did not know she was doing so. She admits her art skills are not the sharpest, yet her Facebook post has led to the plastering of mosaics on sidewalks, doors, fences, windows, stone...