I have never used the yarn Debbie Stoller suggests in the pattern, but have had pretty good success. I never got around to taking any photos of the first two, so can't prove anything. At least I could find all the yarn labels and enough notes on how to alter the pattern to make is seem like I was keeping track of my projects when they were under construction.
On Saturday, after I finished up with Sock #2, I dove right into making my third version of Debbie Stoller's Big Bad Baby Blanket pattern (as found in the print version of Stitch 'n Bitch). I am using one strand of Filatura di Crosa Baby Pom Pom yarn (red) on size 5 needles and cast on 164 stitches. I put a link on to a website that sells the yarn so you can see it, but I didn't buy it at that store. I finished off the first ball of yarn tonight and the blanket now measures in at 4" long and approximately 28" wide, so 1/7 of the way there. At this rate the blanket should be done before my friend's baby arrives.The edge is no where near this wavy! Must be the way I laid it out.
The first BBBB I made (almost 2 yrs. ago) was made with two strands of Lang Yarns Bebe Color, which is very nice washable wool. I used two different colors to get a variegated effect. Sorry, but I can't remember which size needles or how many stitches were cast on. On a positive note, I've been told that that the baby really enjoyed rubbing her fingers over the blanket.
The second BBBB I knit (last summer) was made with one strand of Trendsetter Yarns Scoubi Du (aqua) on size 6 needles and cast on 138 stitches. I also made a matching hat with this yarn. The baby and mom seem very happy with the set. The color went perfectly with the nursery theme, too, which was cool.