Humans: unlimited 

Acrobat: {1/3}

Clowns: {1/7}

Tiny people: {0/4}

Sword-swallowers: {0/2}

Animal Tamers: {1/2}

Fire eaters: {1/3}

Heavily tattooed/jeweled: {0/3} 

Ringmaster: {1/1}

Strongest people on earth: {0/2}

The freaks of nature: (it's literally anything that is geneticallly made) {3/4}