1. Apply thin coat of glue to five sides of each block using paintbrush; let dry. (Note: The sixth side will be bottom of block and not covered with clay.)
2. Condition each clay color separately until pliable. Roll clay through Clay Conditioning Machine at medium thin setting.
3. To cover each block, cut strips of clay to width of block and long enough to go around three sides. Place one end of strip on one side of block; wrap to completely cover three sides. Trim excess clay with rigid clay blade or craft knife. Press clay securely on block. Cut another clay strip slightly wider than before; wrap around remaining sides of block. Trim excess clay.
4. To make polka-dot or star designs, smooth piece of plastic wrap over very thin rolled sheet of clay in contrasting color. Use star cutter, or plastic drinking straw for polka dots, to cut shapes from clay. Remove plastic wrap from clay. Press shapes on covered blocks in uniform or random pattern.
5. For straight ribbons, cut strips form clay rolled at very thin setting; wrap strip around three sides of block. Trim excess. Wrap another strip from center of ribbon on top around other three sides. Press to secure.
6. For double-sided ribbon, lay thin sheet of clay over contrasting-color clay and run through clay conditioning machine on very thin setting. Cut narrow strips and twist strips along length so both colors are visible. Press twisted length around block as in Step 5.
7. For stacked ribbon, use wavy blade to cut 1/4"-wide strip of clay. Press thin strip of contrasting-color clay on top. Press ribbon around block as in Step 5.
8. Insert key ring into center top of block after ribbon is applied but before bows or embellishments. Embed key ring into center top, making sure crimped portion is in clay.
9. For standard bows, use diamond shape cutter to cut two shapes from clay. Pinch long points of two diamond shapes together, forming one half of bow. Repeat for other half; position both shapes on one side on center top of block. Roll tiny clay ball; press onto top of shapes. Repeat for other bow. For looped bows, cut four 1/2"-long lengths; form into loops and press onto top of block around key ring using photo as guide.
10. For holly and berries, cut leaves using star cutter and use needle tool to draw vein lines. Roll tiny Red Glitter clay balls for berries. Press leaves and berries onto top of block.
11. Follow manufacturer's instructions to bake gift boxes on parchment-lined baking sheet in oven. Let cool completely. Spot glue blocks if needed.
1. The plastic wrap will prevent clay from sticking to cutter and will also give a slightly-beveled edge to clay shape.