I just found a pattern here that you should be able to make the red blanket out of.
cast on 8 st.
she has you do a m1, but to get the holes, do a YO instead of the m1.
and then you can knit 8 rows all the way around (increasing every other round), purl 8 rows all the way around (increasing every other row)... that should give you the ridges that it has.
the good thing is that you can stop when you run out of yarn.