I used to have the names of mountains I summitted embroidered on a pack towel hanging from my pack.
I just got my new HF Flag, and that will always be with me - even on day hikes! But the idea of "Hang Patches" for indiviual hangs (First Annual, etc ...) intrigues me now.
Check-out the awesome patch that was made-up for those that went to the 1st annual Florida hang .... creative, and just awesome! GREAT Keepsake! (there is only one first, ever ..)
So...now I think that using the HF logo - or some part of it - incorporated into the 'official' hang patches for hangs would be sweet! I will be having some made-up for any hang I attend this upcoming year .... Could be a great memory jogger, and visual diary of your hangin' travels!
Put 'em on the pack, a towel, or even a separate flag.
Not recommending anything, really, just philosophizin'.