I discovered a neat method for soapsticks recently. I used to always soak a bar of soap in hot water for a while till it softened. Then I'd cut into the desired size, leaving the soapy water for a later SSE.
I had already cut a bar that didn't soak quite long enough, I decided to put in the microwave for about 5-7 seconds. When It came out it was soft and pliable. I could mold it into any shape I want, make them as long or as short, fat or wide.
Then I like to put a few in a bag in the freezer, I will take one of those first. Then a warmer, softer one after about 30 to 60 min. I tried several shapes, I like the buttplug shaped or double ripple. tapered is nice too.
Oh, if your'e not used to cold, you might want to skip the freezer. It can be a bit intense. However, if the cold gets too bad, a warm small enema, given slowly will help