OT... but it's come to mind 2 or 3 times in the past 24 hours....
Have you tried growing bean-sprouts on your tours. You hang them in a nylon/mesh bag from the seat frame (runner thingies underneath) and rinse them out a few times a day.
I did it 25 years ago on my trip down 101. You have to watch out for eg racoons of course. They are very health conscious in California