AMERICAN CRAFTS-Thickers Chipboard Stickers. Thicker chipboard stickers measure approximately 1/2in to 1-1/2in. They can be used as-is or embellished with sanded edges; paint; glitter; markers; and whatever else your imagination can come up with. Each package contains letters; numbers; and extras. Packs come in either uppercase or lowercase. A variety of colors and fonts available. Imported.