Shabnam's Barbed Cone:

This space curve was produced using the following Maple commands:

> x:=t*(cos(t))^3;
> y:=t*(sin(t))^2;
> z:=t+sin(t);
                                         3
                            x := t cos(t)


                                         2
                            y := t sin(t)


                           z := t + sin(t)

> with(plots):
> spacecurve([x,y,z],t=0..20*Pi,numpoints=1000,
>   axes='NORMAL',orientation=[45,75],thickness=2);