In this case, google is probably your friend. This Youtube video will walk you through making a standard end grain board laid out in a celtic knot pattern. Other than having to be a little careful with the strip glue ups to get the right patterns and to do 4 or 5 strip layouts instead of a single one like you would for a checkerboard layout, its the same build process for any end grain board.
One thing I like about this video is the tools are all pretty standard hobby tools.
Mike