Cart Remove item Thumbnail image Product Price Quantity Subtotal × Do not Drink and Derive Beer Stein $39 Do not Drink and Derive Beer Stein quantity $39 × Switch Please Mug $20 Switch Please Mug quantity $20 Coupon: Apply coupon Update cart You may be interested in… Keeper of the Blinking Lights Hoodie $48 Select options Keeper of the Blinking Lights T-Shirt $24 – $28 Select options Don’t Drink and Derive T-Shirt $25 – $27 Select options Mathletics Department Mug $20 Select options Master of Switchcraft T-Shirt $24 – $28 Select options Cart totals Subtotal $59 Shipping Flat rate: $5 Shipping to AB. GST $3 Total $67 Proceed to checkout