Here is a link to the volunteer app for Small Paws Rescue. This will give you some ideas, I am sure. This is used for folks who foster, or don't but do help w/ transports, so at some point they have a dog in their custody.

http://www.formsite.com/smallpaws/foster/index.html

I am very happy to see volunteers organizing to help at the Hartford CT shelter. We often have their postings on CL here, for dogs at the end of the 10 days.