I bought this kit online at www.eurojapanlinks.com
I thought it wouldn't be too hard, actually it's just pretty long, between all the cutting and then putting the 5 different kimonos together... Maybe 6-7 hours total.
I almost lost my temper though, when I was to the point where I had to sew the ditch all around the fabric and the batting. The patern for it was way to thin for me to stitch (someone more used to this would definitely sdo a better job) and I really struggled and ended up not enjoying myself so much. Though the result is not super straight, I still hung it in our living room :)
I think I definitely enjoy doing little felt/fleece monsters much better! Let me get back to that..