I'm addicted to hexies too! I had a break from them to finish off a load of quilts that needed doing by Christmas and I really missed being able to just pick it up and do a bit whenever I felt like it.
I've just started a new one that is similar to the snail trail one above, but I designed it myself. I used the design sheets that are available for free on the paper pieces website and just coloured them in until I found a design that I really liked :-)