Hi everyone, I'm not 100% familiar with this site and if this is a repost I am genuinely sorry and you can feel free to delete.
I was playing an Isle of conquest and wound up leaving but keeping my parachute and slowfall buff. I was able to recreate this quite easily, I don't know how useful it is but I found it fun.
Step 1. Mount on a flying mount (I've been using a mimiron's head but it should work with anything).
Step 2. Enter and play an isle of conquest while holding the hangar.
Step 3. A few seconds before the game ends jump off the boat, if it ends while you have the parachute buff you will have the buff and visual effect on a mount when you leave the BG.
Again, I don't know if it's really useful for anything but I thought it was fun.