Which is the stupidest project you have money in atm?

Like which coin or token do you have money in that you know is likely to never go anywhere, but you can't let go of because of some odd hard-to-explain attachment or weird/ now forgotten series of events?

Is it a 'what if' kind of thing, a strange kind of nostalgia, meme value, etc.? Did it rise and fall and never recover and it's not worth the effort to cash in what's left?

I have a lot of wallets with tokens I'm sure I had a good reason at the time to purchase, but now I can't for the life of me explain or justify - they're just kind of there and probably will be forever...