Ok, well here are the ones I made yesterday that might help:
You can download them
hereI can make more designs from the knit pattern - I have it in vector format, which will allow me to select individual stitches, so I can move specific groups to different layers to form shapes.
While I was looking for what is already available, I found some very nice ones at a CC site. Google "sims 3 PatternWitch's PW knittings set". I haven't tried them myself, but they look very nice.