Cool cutting rooting method!
I was watching "Gardening by the Yard", and he showed a method for rooting hardwood cuttings that was really neat! He stuck it in rooting hormone, then poked a hole in a potato that was a little smaller than the cutting, then stuck the cutting in the potato. Bury the potato completely in potting soil, and it should root.
I've simply got to try this, as my best friend has a produce store and is always throwing out potatoes! Maybe you could ask at the local grocery to have all their tossable potatoes . Sometimes they have rules where they can't give them to you, but I made friends with the produce manager once, and he called me when he had certain stuff he was dumping. I was using his refuse in my compost pile.