I was pretty sure there was some there, i only crochet and i think i got some from there, there is a longies pattern, its for a year old, you can easily shorten the legs to make shorties. Ok i looked through my links and here are a few i have used, or am considering:
http://www.borntolove.com/pattern.htmlhttp://www.geocities.com/Heartland/S...apercovers.htmhttp://www.tickleturdle.com/wrappattern.html (this one is really good, easy to make and should fit for awhile, even if it is a wrap)
http://www.craftyarncouncil.com/projects/may01.html (is an outfit but has a soaker included)
http://web.archive.org/web/200510221...og/?page_id=44 (this is my next project, really really cute shorties)
http://www.mothering.com/discussions...d.php?t=495098 (has a pattern a member posted)
http://www.fullvid.com/wool/WSLinks.html (a whole list of patterns)
I think thats all i have, and they are all free, but it should keep you busy for awhile

, if you Google search for crocheted baby shorts then you should be able to turn up a few more. Second hand shops often also have older baby pattern books, i have a pile from the 70's that have some really sweet shorties, but they usually are not called covers or soaker's, they are just part of an outfit.
I hope that helps, sorry about the brain fart about the sticky, if you need some help with a pattern just pm me, I am usually good at working out what is going on. Also i think there might be a couple of older posts asking a similar question, a quick search should turn them up.