Here is a micro-optimized, version of AnonyMonk's code (just because it was fun).

#!/usr/bin/perl
use strict;
use warnings;

for (1..6){
  print_dice2($_);
};

#------------------------------
sub print_dice2{
  my $value = shift or die $!;
  my @DICE = ( 0,
     0x020,   # Use 3 bits per hex digit, and 3 hex digits
     0x401,   # to represent one printed line
     0x421,   # of the die face.
     0x505,
     0x525,
     0x555
  );
  print "---------\n";
  for (8,4,0)  { #Choose each Hex digit, Left-to-right
      my $line = $DICE[$value] >> $_; # Low 4-bits now contain the inf
+o
      print '| ',  # Now, pick each bit, L-to-R, and print
          map({$line & 1 << $_  ?  "#"  :  " "," " } (2,1,0)  ),
          "|\n";
  }
  print "---------\n";
};
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