What this obfu lacks in artistic merit (that's supposed to be a Möbius strip), I think it makes up in technique and name. I got the idea from a Haskell assignment (egads! Posting homework to the monastery?), and I think the main concept is mildly clever. I'd love to talk about it, but I don't want to spoil the surprise!

#! /usr/bin/perl -w

use strict;

 sub godel{my ($f,$a,$l)=@_;return $a  unless @$l;my$x=shift @$l;&$f(
$x,&godel($f,$a,$l));}my @M=split '',  "Just another ";my @I =split ''
+, 
"Perl hacker,"; my                                  @U =reverse @M; su
+b
escher{my ($l,$m)                                    =@_;sub{$l= pop @
+U
if @U;$l.&$m();} }                                  unshift@U, split '
+'
,"pool egnarts";my$bach=&godel(\&escher,&godel(\&escher,sub{return"\n"
+}
 ,\@I),\@M);print &$bach(); ### Inspired by Douglas Hofstadter's _GEB_
[download]

Tested on Perl 5.6.1, Linux 2.4.18.