I need help in finding a wick centering tool that will work on a small jar opening of 2.25". I have the smallest size of those plastic wick centering tools, but they are way too big even with using the adapters. My eyeballing technique is leaving much to be desired, and want to find something that will work for me. Is there such a thing as a wick centering tool for smaller jars? I've been searching, but have come up with diddly squat. Thanks!