These comprise all manner of fantastical animals and plant life of my own invention.

这些包含了所有由我自己创造的神奇的动物和植物的生命形式。

youdao

For the second, you could try my own top-secret invention, Buffalo Soldier Wings.

另外，或许你可以试试我的独创发明，布法罗战斗之翅。

youdao

As for drizzling vinegar on the manti instead of the traditional yogurt sauce, I have a feeling it's my family's own invention.

WSJ: Babushka's Dacha Dumplings