import SimpleHTTPServer
import SocketServer

PORT = 8000

Handler = SimpleHTTPServer.SimpleHTTPRequestHandler

httpd = SocketServer.TCPServer(("", PORT), Handler)

print "serving at port", PORT
httpd.serve_forever()

python 2.x:

python -c "print ''.join(__import__('random').choice(u'\u2571\u2572') for i in range(50*24))"

python 3.x:

python -c "print(''.join(__import__('random').choice('\u2571\u2572') for i in range(50*24)))"

_                   =  (
                    255,
                   lambda
                V    ,B,c
               :c  and Y(V*V+B,B, c
                -1)if(abs(V)<6)else
        (       2+c-4*abs(V)**-0.4)/i
         ) ;v,   x=1500,1000;C=range(v*x
         );import struct;P=struct.pack;M,\
      j ='<QIIHHHH',open('M.bmp','wb').write
for X in j('BM'+P(M,v*x*3+26,26,12,v,x,1,24))or C:
      i ,Y=_;j(P('BBB',*(lambda T:(T*80+T**9
         *i-950*T **99,T*70-880*T**18+701*
         T **9   ,T*i**(1-T**45*2)))(sum(
        [       Y(0,(A%3/3.+X%v+(X/v+
                A/3/3.-x/2)/1j)*2.5
               /x  -2.7,i)**2 for \
                A    in C
                   [:9]])
                    /9)
                    )  )