Gourd and koi fish are both lucky pendants. Gourd stands for "Fulu". Gourd is a kind of herb, and its branches are called "tendrils". "Man" is homophonic with "Wan", and "Man Band" is homophonic with "Wan Band". "Fulu" and "Bandai" are complete, so the gourd represents the prosperity of the family and the longevity of Yongchang. Koi fish is a kind of geomantic fish. Fish is homophonic with "fish", which has something to do with people's wealth and has the meaning of getting rich. But the meaning of gourd is more direct, so the lucky effect of gourd should be better.
In addition, there are jade cabbage, gold ingot, brave and so on. These are all lucky items.