Congrats. Good luck. Hope it all goes well for you.
I've got flasks, knives, tumblers, shirts, custom crank baits, helmet shields and likely other items I can't recall for standing up in weddings. Sorry to say that I don't use any of it, and, further, none of the itens really have any sentimental meaning for me. I cherish the memories and experiences.
Save your cash. The best gift you can give friends and anyone else who is taking time out of busy schedules to be a part of your big day is to make sure your relationship is sound and that you work on making it last long term. I can think of at least half a dozen weddings on which I spent a lot of time and cash and/or traveled for that then didn't last. Sure, things happen, but a token to commemorate the day still doesn't make me feel great about not going fishing those weekends!