A designer's tea mug?
Pantone is the colour authority for designers, and with this set of mugs, they're creating a guide for how milky you'd like you morning cuppa! (Mine would be the third one in, by the way.)
Made by Whitbread Wilkinson (and yes, they do ship to Canada), the set costs US $50.
And, if tea's not your thing, they've also got a colour-coded espresso set, as well as cheerier, non-beverage derived hues.