Now, that's a hard question, since she doesn't actually know what the thing was. She squints, thinking.

"He called it... a tomo-something. Tomo-goshy? I don't know. It looked like a little egg thing." Ylva tries to indicate the shape of it with her hands, which is not, actually, very helpful. "Made of. Plastic, I think it's called. Someone told me the word 'plastic.'"