I have the wallet of an old German conductor out of München Gladbach, Arnold Queasten. I found it in a thrift store as it looked like a nice quality leather wallet.
In it are still some notes from Arnold, on two of his business cards. A note of someone here knew from the war, and another person from the flute section.
There was one pfennig, a German penny still in it. So I have Arnold's last penny. I found his grave on findagrave, one day I'll visit that.
I'm now terribly afraid of losing the wallet, though, because I'm unsure a casual finder would appreciate the beauty of such a piece.
I've got a black joker card in my wallet. I was walking to the tram stop with someone once, when I saw this playing card face-down on the floor, so I said "bet you I can guess this card," I knelt down, and I said "I think it's a joker." I was about to turn it over when my friend said "hold on, black or red?" I said black and turned it over, and now it lives in my wallet.
I used to have a 1/4" nut that missed the threading process. I had it on my keychain to remind me that even if something is done millions of times without error, sometimes mistakes can happen.
Made a 5" aluminum baseball bat in high school shop class learning how to use a lathe. It's been on my keys ever since. Thing is probably older than most folks reading this.
I'm now imagining two random strangers meeting in a random place, one of them with an overheating laptop, and asking the other "got some paste?" like smokers sometimes ask for a lighter.
Not necessarily unique, but I mostly always carry a small pouch containing a full D&D dice set.
I haven't needed dice in... years, now that I think about it, but I carry them as a symbol of luck. Not good luck or bad luck, just luck, chance. Helps me keep things in perspective when everything goes sideways.
A metal red uno reverse card sits in my wallet. It was a gift from my girlfriend and an acknowledgement of our in joke of replying no u to compliments and I love yous.
I’m indifferent to squirrels... but my city has hired a falconer to scare the crows away with hawks, so now the crows symbolize the oppressed masses being persecuted by the state.
At a certain point in time i carried a distinct coin with a scratch mark i made on it so i can flip it and see if i could make it fly (i was heavy into lucir dreaming at the time lmao).
Its mostly influence from inception, u can get the same result from just counting your fingers, they look super weird in dreams😭
There's a couple different aspects, and a variety of techniques. First part is to create a habit of something. Previous poster seems to be using a coin flip. For me, I like to make a habit of pinching my nose closed and trying to inhale through it. Obviously, this doesn't work when you are awake, but will work if you are dreaming. It may take weeks of developing this habit (do it every time you think of it), before the habit makes it into your dream.
Realizing that you are dreaming may wake you up the first few times, but eventually, you will be able to stay asleep while aware you are dreaming: aka lucid dreaming.
The other part, aside from developing that habit, is prepping yourself before sleep. Again, you'll find different techniques, but here's the one I favor. Lay on your back in bed, eyes closed. Focus on your legs, for 10 breaths, then your arms for 10 breaths, then your sense of hearing for 10 breaths, then sight (eyes still closed) for 10 breaths, sense of touch for 10 breaths, etc. Keep cycling through until you fall asleep. This primes you to be "located" in your body once you fall asleep. If you're lucky, you'll perform your "habit", realize you're asleep, and have full control of your body! Good luck :)
What the other guy said helps, and also developping a habit of looking at your palm whenever u remember to do it or whenever something odd or peculiar happens, if u do that and u start giving more focus on ur dreams and make them more important to you, you just might eventually look at your palm and see your that your fingers are wiggling or gained a sibling or two, then ud know u did it😸
Leaving aside points about driving licence numbers being unique or whatever, it would be the silver pentagram that I made back in the '90s and have worn (or occasionally carry in my wallet etc, when the cord breaks) ever since.
Nail clippers. Got them originally to help with a bad habit of cuticle picking, but I've learned they're weirdly useful. They can cut things in a pinch and no security check gives a shit about them unlike a pocket knife.
An arch lighter version of a zippo. It fits in traditional zippo cases so I have a collection of shells that I change out to fit the mood. The current one is matte black with a cthulhu theme in brass but normally I use the mercury glass with bones and flowers. My wife calls it my zappo.
Nothing anymore. But from age 18 to mid 30s I kept my busted up old guitar pick in my wallet.
It had seen way too many shows, and it was brittle as hell. It’s in a shoebox with since other memories now.
Less unique, I carried around phenergan pills in my pocket for about 10 years. I’d had an episode of an unknown something setting off a reaction with my throat closing up. Urgent care gave me the pills when I left the hospital and I couldn’t not take them everywhere with me for a long time.