This is a 14oz ceramic mug from Mustang Products, part of their Sculpted Carlton line. It features a Maple Leafs design.
Niko June
Bloomingville
Chito International
Mustang Products
Baby Milo
Anna + Nina
Talking Tables
Pomax
Carne Bollente
Beams Japan
Chito
Fluid Market
Mags
Pets First
2379 Nicholas Mosse Pottery