Ok so we can still write it down, brand it, carve it or tattoo it
“Tattoo? Have fun with that permanent identifying mark. If we’re worried about forgetting, I’ll set a reminder.â€
Natsu makes a grandiose gesture and his holy symbol, a mahogany cane topped with a fat Buddha-like slaad, pops into his hand. He brings it up to his mouth like a microphone and says to it: “Cache, remind me in 3 days that the artifact we are looking for is carried by Harrl.â€
To which the item responds: “Okay. I’ll remind you.â€