[amsat-bb] Grid Square Maps

[Tom]

Back in my county-hunting days I had purchased, from somewhere, a poster
size black on white map of the continental USA with all counties shown. As
each county was confirmed I could "color in" that county with a felt-tip
marker. So I could quickly see if I needed a county heard on the air. 
 
Is anyone aware of a similar commercially available map for the USA that
shows grid squares which could be colored in as they were confirmed? How
about for Europe or other areas?
 
Thanks.
Tom, KØTW