This crystal-clear mug will help all who drink from it to Stay Grounded™ by forever reminding them to see when the glass is half-empty.

$9.95 at Despair

This funny mug is a great way to show your opinion, or it would make a great gift. All mugs are white on the outside & you choose the color you would like for the inside of the mug.

$16.99 at Amazon

Express your quirkiness with one of these stylish and hilarious porcelain coffee mugs that hold 14 oz. of the steamiest brew. These highly stylized mugs aren’t your ordinary fare; no words of inspiration here, just raw, everyday humor here.

$8.99 at Mookie Gifts

This mug has 15 famous moustaches on it. Do you know what moustache belongs to who? The answers are on the box.

$9.69 at Amazon

Why should dogs be the only ones allowed to drink out of the toilet? This silly toilet-shaped mug holds up to 12oz of your favorite hot beverage and will make your co-workers do a double take.

$15.98 at Prank Place