<?php
$installer = $this;
$installer->startSetup();

$modelSet = Mage::getModel('eav/entity_attribute_set');
$modelSet->setAttributeSetName('Handmade Ring')
	->setEntityTypeId(4);
$modelSet->validate('Handmade Ring');
$modelSet->save();
$modelSet->initFromSkeleton(4)->save();

$installer->installEntities();

$installer->endSetup();
?>