Slayers Settei (34)
In one of the side stories, Lina has been cursed in such a way that she cannot use her full magic at the moment. What she does as a work-around is to con Xellos out of this set of baubles that amplify magic. He never asks to get them back, which is curious. (This sheet was stapled with the episode 14 batch, but on second look I wonder whether it's actually from episode 10. Stay tuned.)