A novelty bra printed with Carl's face and "Time to pay daddy tax!", left on the table by Katia as a joke.
One of only two items remaining on the table as the ninth floor burned: a bra with Carl's own face on one cup and the words "Time to pay daddy tax!" on the other. Elle demanded to know what the hell it was, then whipped it down and took it.
Carl assumed Katia had won it on Dungeon Sidekicks long ago and had deliberately left it on the table as a parting joke — one of the last things she left behind.
An ordinary bra printed with Carl's face on one cup and the slogan "Time to pay daddy tax!" across the other.
Katia's last joke, and the only thing besides her crow card left on the table.