In the blends of long-established shops, in addition to chili pepper, Japanese Sansho pepper (a green dried version of Sichuan peppers), hemp seeds, and white sesame seeds , there are versions with flax seeds, poppy seeds, green laver, ginger, dried tangerine peel, black sesame seeds, and/or dried Shiso .

All the major shops and manufacturers will have their own special blend and generally limit the number to 7 items.
But there are some that might sneak in one more….