I have gotten many questions about this pattern (Simplicity 9004) since it is my avatar. I made this for my cats.
Of course they do not use it but the mouth is too small anyway. I made it about 2 1/2 years ago so my memory of its construction is foggy. Anyway, it was fun to make. I was a little confused about how the head attached to the body. There is an unfinished seam inside but I dont care since no one will really see it. I also did not put the eyes on it because I got lazy and did not want to search for ping pong balls.
I have used it as a funky bag but it was cumbersome. Now it is eating a monster in my living room. Yeah!
Feel free to ask questions, but like I said, my memory is foggy about construction. Someday I plan to make the others on the pattern (a tent and a house). I may even try to make them lifesize. That'd be real fun!