Design rollers are like rolling block prints. They can be used as painting tools to liven up a painting with patterns. They do the job well, and quickly.
This particular roller sleeve is carved with a dremel tool with a ball-shaped burr bit. It paints parallel wavy lines. Other carved designs will paint other designs.
1 1/4" PVC pipe sections can be used as the basic sleeves for standard paint roller handles. Besides carving, you can also adhere materials to the sleeve to make designs.
Step 1: Carving the Sleeve
To hold the pipe section in my vise, I slipped it over a longer piece of 1 1/4" diameter pipe slit up one side and rolled to fit inside. As it expanded, it held the pipe section to be carved firmly.
Pencil your design and carve away.