Keep it simple. When it comes to rulers a straight edge ruler and a set of circles (marked with centers and etched lines) will really be all you will need to start with. If you enjoy pantos, look for those that interlock, and again I would keep it simple, maybe a floral, a feathered one, a manly one. I find stencils are never the size I need. Do go and have a great time, looking and comparing products.