While the “regular” Nyokki sell well all year round, these new Nyokki were created especially for popular gift-giving holidays. The Boo! Nyokki will scare up sales for Halloween. Nyokki are handmade in Japan from glazed ceramic, shaped like an egg (1.75” x 1.875”) and feature fabric legs. Their heads are filled with a growing medium and rye grass seed. Nyokki are easy to grow; seeds germinate and grass grows to full height in less than two weeks.