Stolen aspects item ideas?

Need some help with some pre-game setup and hoping you all might have some ideas. My players will all have things taken from them (per one of the two base book adventure hooks) and every player has chosen something unique that isn't in the book. Thats put it on me to convert these "lost things" into magical items to hand out later! I was hoping for some insight mostly on the two im stumped on, but also on the few I have come up with. Looking for suggestions for the final two but if you can think of anything better for the ones I did come up with I would love to hear them!

My players are as follows

Halfling Bard who lost her luck. We gave her the reverse of the usual "Rerolling 1's" and now she rerolls 20's. Shes getting a Luck Blade when she recovers her lost item.

Eladrin Rogue who lost the ability to lie. The character is forcibly truthful and has a habit of speaking their mind. He's getting a Ring of Mind Shielding.

Drow Wild Magic Sorc who lost the ability to control his magic. This one's kinda obvious and I intend to give him a Feywild Shard as well as a homebrew wildmagic table with more varied mostly positive effects.

Now the two I am stumped on.

Tiefling Fathomless Warlock who can no longer swim. The thematic aspect of having an eldrich sea beast patron and an inability to swim is neat but im having trouble with an item that doesnt fall flat given the lack of underwater content.

Owlin Gunslinger who lost their ability to recognize and remember people. This one is going to work with/travel with the carnival as a booth operator. The idea being that the game isn't rigged like normal games, but he'll forget WHO you are and that you were even playing.

Any suggestions in the way of flavorful yet still somewhat impactfull items for those two, or any alternatives to the others are all welcomes.

Thanks in advance!