Are you looking for sewing patterns or crochet/knit patterns? If you do a Goggle search and type in GI Joe Sewing Patterns free...you will come up with several free patterns.
Years ago I made sweaters for my son's GI Joe's from their socks. Lost the instructions but found one for a hoodie for Barbie which can be made from a sock. Just use a boy's sock instead of girl's pretty socks. Only one sock is needed. There are 14 "pages" but each page has just one or two steps and a very good picture; then click the next page for the next instructions until you have reached page 14. There are more instructions for other clothing. Scroll down the list for the sock instructions. Have fun!
I have this one- old (1961) but uncut. Is it one you're looking for? I copied the pix.
If it's the same one I looked at it's in the description as:
This auction is for a 1987 Butterick sewing pattern. It is pretty rare. I don't often see these on eBay. This is used and originally bought 2nd hand. It is from my personal collection.
Feel free to ask the eBay seller if the pattern is an original or a copy.
Wish I could help you but don't have that answer to that question. I can tell you that when my son was in the GI Joe stage, I made sleeping bags for he and his friends GI Joes and they all still remember how much fun they had taking the guys camping. You could get some different colors/designs of camoflage fabric and use the clothing that came with as a pattern. Also if you have a Hobby Lobby near, look in the area that they have the bandannas as they have a rack of different ones-cowboy/camo/animaletc- and for a dollar or so you can get enough fabric for several outfits.
thanks..any ideas are appreciated!!