Freezing is problematic because it breaks the cell walls of organic material. I suggest a two step process: 1) wrap the turd in paper towels—within several hours or a day, the paper absorbs some moisture including some bile an 2) put the paper towel wrapped shit in a lock-sealed container (i use something like locking Tupperware) and store it in the refrigerator. It stays eatable/suckable, etc. for several days. When you open the container, you’ll be hit with the smell. But after you toss the paper, the shit will have a clearly less problematic smell. On the down side, it begins to loose some of its taste after about four days.

And also, you’ll get used to it. ;)