I don't think I've seen one based on this mechanic:

s..//s:sy/:/ssy/ss::y:/ss:y:/:ssy/s://y:s///;////:ys:::/;///:sy/s://y:
+s///y/::s/y/://:;s///:y/:/s/y//:::y://s:y:/::/y:://:;///:/y/://sy//:/
+/y/:/s:y:s//:ys/:::y/:s::;///s:y/:s//y:s///y//s::y:/:/:y:/::/;///:sy/
+/s:/y/:///y/:s::y:/:ss.;y,y/:s;,|01./,;$/=$_;map{$;=(sprintf'%05b',$_
+);print+chr((eval'0b'.join'',map{eval'$;=~m/('.(split?/?,$/)[$_].')/?
+1:0'}0..6)+32)}1..25
[download]

any tips to golf it down a bit, while maintaining reasonable obfuscation?