Well, I have not really ever made doll cloths but decided I would give it a try for my 8 year old daughter's 18" doll (like an American Girl Doll ) named Leah.
We (my daughter and I) decided to start with a coat for her baby doll made out of knit fabric. No pattern was used, I just traced around the baby and preyed it would work the way I thought it would in my head.
I didn't sew a hem on the bottom or the sleeves but didn't figure I would need to with it being made out of knit.
I did buy some doll cloths patterns and some material just for my daughter's doll....since the coat didn't turn out too bad, will have to try them next (even though an actual pattern is a bit scary.....lol)