"about math, research papers, science"

"Spam masubi"

"老鼠驾驶着拖垃机"

"Robot with a repair kit"

"Ninja with a dual sword"

"Wizard with a book of ancient spells"

"Astronaut with a comet trail"

"Fairy tale dragon flying"

"Mythical phoenix in the night sky"

"Alien with a translator device"

"Robot with a laser sword"

"Magic spell book"

"Dragon egg hatching"

"Treasure chest on a beach"

"Kraken attacking a ship"