I'm having much better luck with my pysanky eggs these days. Eggs had been breaking left and right; before decorating and after. After much trial and error to fix the problem, I finally have a fix. One of my better tricks that has improved the whole process is that I don't empty the egg before decorating it. I draw the wax design; color in; varnish it; and then the next day I blow out the contents. It isn't fool proof, but it sure is an improvemet.