I just want to mention a few general things I think about trophies:
#1 The purpose they serve is to be on display where other people will see them.
#2 Only your FFL buddies care about a FFL trophy
Therefore if your buddies never will physically come to where they can see your trophy displayed (so you can rub it in their faces), then it is pretty useless.
I think it will only be a rare case where a league is all co-workers (and you could put the trophy in your office/cube/whatever) or all very close friends (and you could put it in your house where you hang out) that a trophy might be worthwhile.
So by and large... any type of Fantasy trophy is useless. A ring violates #2. Something you put on your body is basically public display and 99.9% of the people who see it will not give a crap about it and may even cause them to think less of you.
- The best FFL prize is money. If you want to do something Novel, make it a trip for 2 to Honalulu or a gift subscription to NFL League Pass or something else like they would give away on Wheel of Fortune that would appeal to most anybody.