Today, when you order "THE DOOHICKEY SWITCH by Nathan Hickey", you'll instantly be emailed a Penguin Magic gift certificate. You can spend it on anything you like at Penguin, just like cash. Just complete your order as normal, and within seconds you'll get an email with your gift certificate.
THE DOOHICKEY SWITCH by Nathan Hickey (Instant Download)
Either a visual 3 for 3 color change or a seamless 3 for 3 utility switch.