For a ten-second boot?! It'd take longer to load! :P
Seriously though; it would require some osftware like Plymouth, which in turn requirtes a lot of work with framebuffering, VESA/VGA graphics etc. that I reckon has been trimmed out of the boot process deliberately.
I'm told it would have to be worked in to the initramfs before the root partition is loaded, etc., some pretty hacky work that is certainly over my head! http://www.freedesktop.org/wiki/Software/Plymouth
I'm no expert but perhaps the easiest would be modifying bootchartd?
I can't quite work out where things start to get graphical; surely the kernel sorts out the framebuffering and resolutions, but it needs to know that before the kernel boots in order to contain it in a pretty picture?