Chinese koi fish
中国锦鲤
koi carp / fancy carp
锦鲤
I know that in Chinese and Japanese culture there is a long history of promoting the Koi carp as good luck. So today we are going to have a look at some other symbols of good luck, and also some expressions to give good luck.
我知道，锦鲤在中国和日本的文化当中代表着好运。所以，今天我们来看看，还有什么东西可以代表好运，以及一些关于好运的表达。

Firstly, if you crack an egg in the morning and it has a "Double yolk" it means your going to have a great day!
如果你在一早上，打出一个双黄蛋，那你就会好运一整天。
It's good luck if a bird poops in your hand.
如果鸟在你的手上便便也是表示好运。
We have the "Dream Catcher" form Native Americans.
源自印第安人的捕梦网。
Well it's the four leafed clover. This is very rare, about 1 in 10,000 and is also usually associated with Ireland.
还有就是四叶草，这是很少见的，10000片叶子中才有一片，四叶草也会让人想到爱尔兰。

祝福对方好运的表达：
Break a leg.
Fingers crossed.
Good luck vibes.
I hope you strike gold.
I hope lady luck is on your side tonight!