Occasionally I like to knit toys without a pattern. They sort of "clear my platte" you could say. I pick the yarn (usually scrap yarn) and a needle that I think is going to give a firm gauge. The firm gauge is so that none of the stuffing shows through, and also because then I will know that the toy is going to hold it's shape. I do not like to use a pattern, nor try to write or sketch one out, because I like the organic uncertainty of creating the toys.
I think that my favorite part of doing this is to practice my 3D knitting conception skills. I am not very good at getting exactly what I planned, but I am willing to practice, and to make more toys.