knots for flag halyard

[benz]

If you seize a small toggle to each flag grommet, you can then form a clove hitch in the flag halyard and slip it right over the toggle, so the hitch tightens up on the seizing and the toggle keeps it from slipping off. The clove is easy to adjust in place so that the flag takes no strain, and it wouldn't use up as much slack as other knots.
Keep it simple!
Ben