Diy Dog Trailer . I used electrical conduit and an old bike trailer. I bought her harness from black ice dog sledding online. There Are Now Camping Trailer Dog Beds, So Your Pooch Can Enjoy The RV from odditymall.com No one wants to end up with an end result that isn’t the right size, so make accurate measurements! Check out this link and learn how to build a tv dog kennel. This diy trailer can be towing by bicycle.