Another thing my therapist had me do once (and this is harder to find than it was 18 years ago) was to shred phone books. I'm sure magazines (which our local libraries often have free) would work too. It kept my hands busy and me in one place for a while.

The hospital had me make potholders on a loom once. I could only do it in the supervised room but it did help. The nurses spent a lot of time trying to find something I could use as a hook in my room after the day room was closed but it didn't work. It did give me an odd collection of nursing supplies though.