I was looking through some of the literature I have saved in the past few years. And, although I didn't find exactly what I was looking for, I did stumble upon this wonderful resource. Tasks Galore is a publishing company that appears to have some great OT related books - but if you don't have the money for that right now, check the Task of the month, a free and brilliant idea. It does seem that they change these and the ideas are not archived, so check back monthly to keep up.
I'm thinking that you could tie this into a themed treatment session and "go on a trip" on a scooterboard, avoiding obstacles (cones, pillows, chairs) in the road along the way, or picking up friends (stuffed animals).