Glad you asked...
You can easily make a dog wheelchair by using a harness and two wheels. You will also need a drill, nuts, bolts, a tape measure, an aluminum pole, a U shape bar, tape and tennis racket padding. See this site for complete directions for making a dog wheelchair. http://www.ehow.com/how_4707911_build-do...
Then again, this answer might help you...
You will need to make your dog wheelchair according to the size and strength of your dog. You will need wood, metal or PVC pipe for the frame. To support the dog and attach him to the wheel chair you will need some type of harness. The wheels you choose will need to roll easily and keep the chair stable. For more information look here: For building instructions: www.make-and-build-dog-stuff.com/...dog-wheelchairs.html;

