I think it was a wireless Bluetooth headset thing. Because I had to buy for a male or female, because I think I forgot who I was buying it for

A chalkboard, chalk and a book of motivational quotes as part of an office secret santa. He's one of those motivational bro's. It was years ago and he still uses it to 'motivate' the office.

a bit of regolith (lunar dust), the kind of thing that happens when you know literal rocket scientists...and yeah, you have to know they'd love it, not the kind of thing you want to be wrong about

Maybe my stop motion video of three tiny plastic cows I did. The cows did things that are beyond description, nothing disgusting or naughty, just strange like in Stranger Things.

A ramp-shaped pillow to aid with reducing swelling in the feet and legs. I gifted one to my mother in law and my father. I knew they needed it and would like it.

I don't know if it counts because I didn't wrap them up or anything, but I gave away my prosthetic breasts. ...Maybe not that strange unless you were to wrap them up. But yes, they were wanted. Now, if it'd been a total surprise? Then we'd really be gettin weird.

Homegrown mangoes. I had a surplus of it + she mentioned she liked it before.

Ferrerro Rocher for my 4 year old niece. I knew she'd love it because when my mother was gifted a box, she couldn't wait for it to be opened and be given one!