While it may not look like much, the above clock can be fashioned to be any size you like, such as, your entire wall. The only catch is that the hands are not extendable and measure 45 and 50 cm (roughly 17 and 19 inches). Conceivably, if you paint the wall behind the clock there are no limits to the designs you could implement.
The numbers are self adhesive for easy instillation, and the clock comes from England (a.k.a. land of the worst exchange rate ever).
[WhereDidYouBuyThat - ~$68.84]