The best promo code for Ice Yarns is 'SPDD3'. This code provides a discount of $50 off on purchases. Another notable promo code is 'SPDD4', which offers $110 off on purchases of $500 or more. Please note that these codes are subject to change and may not always be available. It's recommended to check the Ice Yarns website or coupon sites for the most current and valid promo codes.