Spiral Flower

https://www.dwitter.net/d/15324

for(c.width|=i=9;i--;)for(k=j=1;j+=k;j-99?0:k=-1)x.arc(960,540,j*12,a=i*.698+S(t-j/9)+S(t*2+j*3)*k/3,a)
x.rect(0,0,2e3,2e3)
x.fill`evenodd`