Sweet Potato Vines Sciene Project

I came home one day to find my sweet potato budding vines.  Then, the vines started growing leaves...  I need to take a more detailed shot of the leaves beacause they are really beautiful.  They are green with purple veins and resemble insect wings.  I am really fond of insects in general, so I decided to keep the old potato to see if it would do anything interesting.
  At this point, it has only been growing like this for 2 weeks.  I remembered a school science project that I did as a child where we took Idaho potatoes and put them in a mason jar.  We suspended the potato only about halfway into the jar using toothpicks as a support system to hold it up.  (as you can see at left)   Then put enough water in the jar to get the bottom wet to feed it.  I remember the result was long crazy vines that my mom actually hung in the corner of our dining room because they were really pretty.  (It grew well inside with indirect light, so I can only hope that it will go crazy on my patio.  We'll see!)  The sweet potato has far more colorful leaves than the one I grew as a kid, so i'm really stoked to see if this is going to work again and what it will look like!