Sand Thumper
Modelled and shaded in Blender.Not rigged, just Keyframed (so the stomper top moves up and down for 279 frames).Approx 50 cm but the size can be changed.Without subdivision the model has less than 10k verts in total. With subdivision surface it has less than 200k verts. In the blend file I didn't apply the subdivision surface, so you can change it as you want.