I am pretty sure you can get dead head flags to mark spooky bastards like that. Or as mentioned fashion one of your own.
A quick google search and this company popped up. Made in Gold River, BC.
Edit:
http://www.paisleyandmint.com/deadhead-flags-floating-log-markers.html
We were at the Hump today, and on the way out I was recalling a trip of the coast in the dark AM hours....as day broke, the first thing we saw was a telephone pole, much like you have pictured SA. I am very happy to hear you are "Staying Alive" after a blow like that. Happy to hear the Crestliner fared well in the battle as well!
I am pretty sure we saw this pole coming in today...it is approx 1 mile west of the North Arm. Passed it heading home.
A little fishing to report, we had our lines down (bumpy, windy, rough in and out, and some rain) shortly before 8am, off the S.E corner of the hump (where I've had all my hits coincidentally), and sure enough before the 3rd rod went down, the second went up. Fish on! A scrappy 11 pounda.
Thanks to Rob @ PNT for supply the lure that did the trick. The same got my 17 last Friday....those TKO's produce! Sadly, I lost the flasher/lure combo when releasing from the scotty clip when bringing the gear up. Pulled to release, something felt funny, and everything was gone. Strange!
Anyways here's a shot of the days catch. Rough, but worth it.
got it @ 90'