Exactly, the feature. I feel that I can do more with Perl, after learning Ruby.

package Person;
sub new {
    my $class = shift;
    my $self = {_name => shift};
    bless $self, $class;
}
1;

package Computer;
sub new {
    my $class = shift;
    my $self = {_name => shift};
    bless $self, $class;
}
package MP3Player;
sub new {
    my $class = shift;
    my $self = {_name => shift};
    bless $self, $class;
}

1;
package main;


$c1 = Computer->new("Dell");
$c2 = Computer->new("Apple");

$m1 = MP3Player->new("IPOD");


$p1 = Person->new("artist");
$p2 = Person->new("jdporter");

use Tie::RefHash;
tie %gift, 'Tie::RefHash';

$gift{$p1} = [$c1];
$gift{$p2} = [$c2,$m1];

foreach my $person  (keys %gift){
    print "Person: ", $person->{_name},"\n";
    foreach my $gift (@{$gift{$person}}){
        print "Gift\t", ref $gift,"\t", $gift->{_name},"\n";
    }
}
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