How to mortise the end of a board?

[gordonmt]

I have a project that requires several mortises (the hole) to be made in on the grain end of several small 2 1/2 inch wide boards.
I have a table top mortiser but it does not lend itself to this type of board end drilling. I am leaning toward a drill, a vise, and some sharp chisels but I was wondering if any of you have a better idea.

[Ken Massingale]

mark,
Here's a jig that works well (regular and end mortises, if the boards aren't super long). It was in Shopnotes IMRC.