Hmmmmm. This "mushroom" seems to be angry !

Like the Octorok I previsously designed, I designed this starting from a 2D sprite, and then imagined what it could ressemble if this beast was in 3D :)

You won't need any glue for this model, everything fits together.

Maybe you will require some supports for the center part and the head part. I also included the Sketchup file.

Enjoy, and don't smash it down like Mario would ;)