I've seen a few folks drill a shallow divot into an anvil or hammer with a 1/16" bit instead of buying a dapping block. I figure you'll probably only use that size anyway.
There's a sticky at the top of the Workshop Forum. I'd get it for you, but my dad always made me grab the big dictionary when I didn't know a word - the routine of walking over, grabbing the 20 lb. book, finding the word and reading it made the definition stick in my head. So, click on "The Workshop" and find some answers - you won't forget 'em that way. :D