Snowboarding Terrain Park Features

How I can create a tow rope to my backyard snowboard terrain park?
I built a garden terrian park with lots of features and reality is only the side that u have to walk backwards. Now I know that probably sounds lazy, but after jibbing for hours and having to return get very tired walking. So if someone has a plan or know where I can find a plan to build a tow rope me please let me know. I have also a waiver so I am not responsible for any injury so im not worried about any of that. I just need a plan. To view the patio so you can check out the site. smlab.synthasite.com
Theirs quite a few videos on youtube of people using their cars or lawnmowers, rope tows. This I think one really sell the kit to connect to the car. http://www.youtube.com/watch?v=D_VwA4IDqrw
The Canyons “Respect” Terrain Park 2008/2009