Balut is a developing bird embryo that is boiled and eaten from the shell. It originated from and is commonly sold as street food in the Philippines. Often served with beer, balut is popular in Southeast Asian countries, such as Laos, Cambodia, Thailand and Vietnam. The Tagalog and Malay word balot means "wrapped". Wikipedia

Guinea pig fried, grilled or roasted. There is little meat and a lot of bones.

Chicken feet are cooked and eaten in many countries. After an outer layer of hard skin is removed, most of the edible tissue on the feet consists of skin and tendons, with no muscle. This gives the feet a distinct texture different from the rest of the chicken's meat. Being mostly skin, chicken feet are very gelatinous.

Tuna Eye Ball is a Japanese delicacy rich in flavor. It is considered as one of the weirdest food, It is prepared with sesame oil, ginger, tuna eye, soy sauce, lemon, rice vinegar. You can find tuna eyeball in any fancy restaurant and in the street of Japan.

Kopi luwak is a coffee that consists of partially digested coffee cherries, which have been eaten and defecated by the Asian palm civet (Paradoxurus hermaphroditus). It is therefore also called civet coffee. The cherries are fermented as they pass through a civet's intestines, and after being defecated with other fecal matter, they are collected. Asian palm civets are increasingly caught in the wild and traded for this purpose. Kopi luwak is produced mainly on the Indonesian islands of Sumatra, Java, …

Spicy grasshopper fried or toasted on a comal with chili, lime, and garlic added for flavor. Chapulines are a popular snack in Mexico, specially in Oaxaca. You can eat them, either by crunching them one by one, or putting them on a tostada or in a taco with some guacamole.