Amazon.com: Fabric Chalk for Sewing - Professional Natural Tailors Chalk - Fabric Markers for Sewing, Fabric Chalk Sewing Made in Canada Wax Based Tailor's Chalk by SEWTCO (4 White, 3 Blue, 3 Yellow, 10 Pack)
Simple Ways to Apply Wax to Chalk Paint: 12 Steps (with Pictures)
Amazon.com: Fabric Chalk for Sewing Tailors Chalk, Fabric Markers for Sewing, Fabric Chalk Sewing Made in Canada Wax Based Tailor's Chalk by SEWTCO (Mix 5 Colors, Single Packed in Bubble wrap)