I was told by one of the best cane makers to use the wax 5055, its a harder wax and will hold up best to burning votives inside. With that wax yiu can't put it in the fridge. But you can put it in the fridge for just 5 mins. no longer! i WORKED on them for months and I found the best advice was to leave them sit in the mold overnight. I think time is the most important thing here. And also working rather quickly when you are applying the photo with the ice, get it into the water bath as quickly as possible. You can also add mico 180, I think thats the name of it, it helps with the brittleness. You can also add a bit of mold release powder to the wax. Make sure your wax is heated to about 200 degrees and heat your mold a bit too. I was coached along by Donita and her canes, and other candles are beautiful! As she told me over and over, practice makes perfect, and she's right. Hope I helped a little, if you have any other questions you can PM me if you want. I'd be glad to help, Dee