Its not exactly home made, just modified. this firewood carrier can easily be made into a deer cart. Someone on this forum posted it a while back. Not bad for $30.00

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=44599

Cut and reattatch so that it lays out more. then add some clip so you can remove the wheels so it will lay down in your vehicle. Hope this helps. I havent built mine yet but i will soon.
good luck