10" x 7.5", done in CorelDRAW! X3.
...off-topic...
For the curious, my graphics box is a rather heavily modified
Fujitsu Siemens Futro S400 thin client. It has an upgraded cooling system (fans!) and an 8gig SLC SSD (thanks to an amazing deal on eBay). Runs WinXP with no networking anything anywhere attached to it. I use a flash drive to shuttle between it and any other (networked) computer... it's not that bad. Modding thin clients into low-power desktops is fun, BTW -- and that linked site ("parkytowers") is freakin' amazing as a resource for that, er, hobby.