knots for flag halyard

[sthompson]

I've been trying to puzzle out whether there is a quick and easy way to knot a single or multiple small flags to the middle of a flag halyard. The halyard in question is a continuous loop of light line run to a small block at the spreader and tied off to a hand rail at the deck. I don't have access to the ends, or more precisely, I'd rather not have to untie the ends each time I hoist a flag. There is plenty of slack in the loop, so ring hitching one grommet of each flag to the halyard would be easy. But I don't see how to approach the second grommet. Thoughts or suggestions would be appreciated. Something that lets the halyard take most of the strain rather than the flag would be best I suppose.

-Scott