no strict refs;
use Data::Dumper;

for $varname ('foo', 'bar', ':', '@%$!') {
  ${$varname} = "some scalar value";
  @{$varname} = ('list', $$varname, \$$varname);
  %{$varname} = ( scalar => \$$varname, array => \@$varname );

  print "-"x$=, $/;
  ::($varname);
}

sub :: {
  for (0) {
    print "For the variables named '$_[$_]':\n";
    print Dumper(${$_[$_]}, \@{$_[$_]}, \%{$_[$_]});
  }
}