Hexagon Boot Slippers

I've decided to make some hexagon boot slippers for my next project. I found the pattern on Priscilla Hewitt's site. I'm using an H hook and black, frosty green and denim blue worsted weight, Red Heart yarn. I like softer yarn, however, I think a stiffer yarn would work better. I have one hexagon made and need to make 5 more, attach 3 together for each boot and make the soles. I think they'll turn out nice.