http://www.perlmonks.org?node_id=290607

Here's a list of words. But not just any words, they are all keywords in Perl. Strangely, this plain ol' list of keywords is a working Perl program.
#!/usr/bin/perl not exp log srand xor s qq qx xor s x x length uc ord and print chr ord for qw q join use sub tied qx xor eval xor print qq q q xor int eval lc q m cos and print chr ord for qw y abs ne open tied hex exp ref y m xor scalar srand print qq q q xor int eval lc qq y sqrt cos and print chr ord for qw x printf each return local x y or print qq s s and eval q s undef or oct xor time xor ref print chr int ord lc foreach qw y hex alarm chdir kill exec return y s gt sin sort split
Run it and see! Who says the excessive punctuation required in Perl makes its programs look ugly? ;)

Update: (3 Sept 2005) Takesako has written a program which generates JAPHs of this form: ppencode

blokhead