I first found a reference image (
here and
here), and then began with primitives. i started with the body as a cylinder, and extruded up for the head and antenna. the eye extruded part was separate, and then i used boolean to attach it to the head. for the mouth, i just connected verts in a way i liked, and then deleted the faces, and extruded in. for the "teeth", i duplicated the faces for the inside of the mouth, chamfered the edges, deleted the main faces(keeping the chamfered faces), and extruded back. the arms and legs are just extruded cylinders, and i used 2 bend modifiers to get them to bend down like that.