A few places have the Westclox Coffee Mug Wall Clock on sale.
Edit: Stock is fluctuating but still being replenished (daily). If out of stock, check link again periodically: Walmart = $4.75 [walmart.com]
... [Pickup discount eligible = $4.50]
Edit: Amazon is going in and out of stock, and the price is fluctuating a bit. So check the link just in case.
Now out of stock: Amazon (Add-on item) = $4.59 [amazon.com]
... [Possible 10% coupon = $4.13]
Now out of stock: Target = $4.59 [target.com]
Now out of stock: Home Depot = $5.02 [homedepot.com]
[Online only. Free shipping on $45+]