I went searching for "PERL obfuscation" and boy did I get it! There's some really great stuff here.
This is the first time I have tried anything like this and I know it's hamfisted. This piece of code is big, full of obvious methods and is in no way elegant or clever, but BOY is it ugly. I guess you'll probably have to fix the line breaks to run it.

#!/usr/bin/perl


$a=q#90#;$z='int(eval($x)1sdfq)d1fsdgh:print"dfg3sdfg1hg1ghfghsadf9sdf
+gsdfg\n"';$c='xSP4Ca<M_x^E7o.5nx$rG7.L3-x(7h+!4Qx$2LqE0]B>xiR6K}1q+x{
+T]6rIKeMtDxHC6+jf_B@xg
J7NhZ4LxP6X8F[^xH6Q5kx_s7O2%xN<t2t0wx-2<S)8B*ix+z7#2<xsU6DM5tx^6Fc}xLr
+I6H%X1ORx+A7WO,4pmJxLG6$9!Wnx!.7y6pR%
x+%6T-S5HxlA-6(rc[xo7iLA9VLsxrP*2t{0Xx-6GDcsy(xYW6zS1JEzx(]v6^_[d*Y#xT
+oL6,}B5B:xD@(2qTL9_prxsi2sr0NxYV5T0Nxy@4)}&5
<xlY5pFX2FxQM%4_AcSx%#2RG0kx_RN6D8lIzxr%D6R1XKxODS6m3KFxH6_CbHxr}B6GwC
+5Kx#;7A,_2zy*';$h=chr(45);$z=~s/[^0-9]//g;$q=int(0x0);while($z=~/(.{3
+})/g){$g.=chr($1);}
$g.=chr((ord('x')-ord('U'))) . chr(-(ord('a')+-int(0xd8)));$s=0x01;$v=
+0x09-0x08;$g.= ' ' . chr(int(0x6b)) . chr(int(ord('q')-0x4e));@n=eval
+($g);${$n[0]}=0x13**2-361;
${$n[1]} = 0x09 . 'a-f';$m=chr(0x78);${'a' . $z} = "($m)[^$w$h$k]*?([$
+w$h$k])[^$w$h$k]*?([$w$h$k])";while($c=~m%$a113119%g){print chr(hex("
+0$1$2$3"));}
[download]

SpaceAce