The first time I used eyelash, I must have ripped out the first 8 rows at least five times. Then I "got it," and haven't had a problem since. As Eva said, there are free patterns for Fun Fur at
http://www.lionbrandyarn.com -- the scarves use anywhere from size 10.5 to size 35 needles. You won't see the stitches (or any holes) because the eyelash fills them out, so I wouldn't bother with anything other than garter stitch (knit every row). Gauge doesn't matter -- just knit as wide & as long as you want. If you really love your pattern, divide 22 (the number it said to cast on) by the number of stitches the gauge gives for one inch, and that's how wide to make your scarf.