When I asked my 3 year old what she wanted to be for Halloween this year, she said either an octopus, a dolphin, or Thursday. I went with octopus. It was incredibly easy!
I took one of those cheap, thin fleece blankets from the drug store and folded it in half, then cut triangle-shaped strips up to about 5 inches from the folded edge. Like construction paper grass. I sewed down the legs (this is where my crooked seams came in handy- they made them wavy) and then joined the two ends together to form a circle, and added a million felt circles on the undersides. I used wire hangers to get them to curl in different directions, and then stuffed it all and added some elastic for the waistband. Then I had to add elastic shoulder straps (that I still need to sew in) because the weight of 6 hangers pulled it right off her waist.
Unfortunately, my old blanket was the last thing anyone ever made in maroon, so she has to wear a black leotard and tights under, with some homemade legwarmers from old knee socks. Still, it cost me $6 and took about 3 hours to do, and she absolutely loves it.
with the legwarmers & tights