18 inches soft rear Low-poly 3D model is available on CGTrader for $49. Original author: mikebibby. Specs: 9588 polys, 9584 verts.
OBJ (OBJ, filesize: 18.3 MB), C4D (Cinema 4D, filesize: 9.01 MB), MA (Autodesk Maya, filesize: 9.56 MB), 3DS (3D Studio, filesize: 8.99 MB), FBX (Autodesk FBX, filesize: 9.46 MB), MAX (Autodesk 3ds Max, filesize: 9.52 MB)