It's not free, but you could probably find her books in the library.
Elizabeth Zimmerman's Surprise Jacket and the Tomten are both knit in one piece. The tomten can be done with or without a hood. I know the tomten is in "Knitting Without Tears" and "The Opinionated Knitter" I think the surprise jacket is in opinionated knitter, but I'm not sure.
On both of these you only seam the arms. The underarms for the tomten and the top of the arms for the surprise jacket. There is a thread going on in the knit-along section for the surprise jacket right now.