Try the free modeler at http://www1.sphere.ne.jp/mizno/main_e.html ...and do some surfing for hammapatch, hexagreat, Elefont, Spiralizer, Fauve Matisse in Gray, DoGa, etc. No need to buy expensive modelers. Metasequia link above exports in .cob and Bryce recognizes that. Lotsa freebies out there. I must have a couple dozen or so.