On a pattern hunt

I found a great deal on a baby bjorn the other week and now I'm on a search for a pattern to make a cover for it. I have found some "designer covers" on e-bay that I may try and get, but I haven't found one I really like yet that's not pink. I don't think I'm ready to design a cover pattern myself yet, but I think I could make one from a pattern. If anyone happens to know where I could find one let me know. Thanks:)