The first one, Nekogoroshi-hen, was illustrated by Karin Suzuragi, Yutori Hōjō, and Jirō Suzuki, and was sent out to those who bought the first volume of the manga versions of Onikakushi-hen, Watanagashi-hen, and Tatarigoroshi-hen.
One needed to send the cut out stamps in all three of these manga by the deadline in order to receive this special short story.
The second light novel, Kuradashi-hen, was illustrated by Tonogai Yoshiki, Karin Suzuki, Yutori Hōjō, and Mimori.
One needed to send the cut out stamps in all four of these manga by a certain deadline in order to receive this special short story.
The third light novel, Hajisarashi-hen, contained illustrations by Rato, and was included with the limited edition of the PlayStation 2 game Higurashi no Naku Koro ni Matsuri.