Here is a list (basic but fun).
Color matches
Blue, Black, White
Orange, Red, Black
Black, White
Greenish
Animals and non-animals:
Felidae: from kittens to almighty cat-goddesses
Elephants
People / character types:
Long haired bishounens
Crossdressers: male and female
Mysterious guy
Pervert guy who hunts other guys
Clothing:
Sexy, but not naked or slutty
One word to describe:
Cute
Reversed harem
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Things I don't like:
Animals and non-animals:
Naked mole-rats
Rats
Worms
Skinny, starving cats
People / character types:
Bodyhair
Females just created for the shake to be paired with the males
Females in way-to-suggestive poses
One word to describe:
Harem