This is an easy way to make a sensory-based fine motor activity. Many of my clients love the sensation of rubbing their hands over the roller as well as the deep pressure sensory input when I roll it over thei9r hands. I attached a roller from the dollar store inside a plastic tube and wedged the tube inside a detergent bottle. I made the rectangular pieces a bit small so that they have to motor plan to tilt each one before inserting over the roller. the young man in the video enjoys giving it some rolls while performing repetitions.
Source: Paint Roller Ring Stack for Children with Autism by RecyclingOT on Rumble