Tried some things and found a couple ways to approximate it. wxdraw(terminal='png,file_name="par",gr3d(axis_3d=false,border=false,line_width=6,color=gray82 ,view=[111,0],implicit(1.04x^2+1.2y^2+9921z^2-1,x,-1,1,y,-1,1,z,-1,1) ,line_width=.3,color=black,makelist(parametric(sin(t)cos(%pip/8),sin(t)sin(%pip/8),cos(t),t,0,%pi+.1),p,0,8),makelist(parametric( sin(t%pi/16)cos(p),sin(t%pi/16)sin(p),cos(t%pi/16),p,0,%pi),t,0,13) ,proportional_axes='xyz))

and wxdraw(terminal='png,file_name="multi",gr3d(axis_3d=false,border=false,line_width=15,color=gray80,view=[66,0],implicit(1.2x^2+2y^2+9921z^2-1,x,-1,1,y,-1,1,z,-1,1),line_width=.5,color=black,xu_grid=12,yv_grid = 16,spherical(1,a,%pi-.1,2%pi+.21,z,0,%pi),proportional_axes='xyz));

If really wanted to could probably find a way to make dotted lines on the rear end or can do that in tex along with a better way to make the axis/dimensions text notation etc.than wxmaxima wxdraw does.