Is it possible to use 比如 at the end of a list of examples?
在文章中，我們通常不那麼用。
We usually don't write in that way.

但在口語上，這是可能的。
But, it is possible in speaking.

它的目的是用來補充句子。
Its purpose is to supplement the sentence.

因為一開始講太快，沒能把順序講對，所以，在最後補上。
When we speak too fast at the beginning, and the order is not right, we supplement it at the end.

For example:

原本想要問：
Originally, I want to ask:

你昨天到哪裡去了？


但因說得很急，講成：
But I put it in a hurry, and say:

你到哪裡去了？


突然發覺不完整，就再補上「昨天」，變成：
I suddenly notice incomplete, then make up "昨天", to become:

你到哪裡去了，昨天？


「比如」也是一樣。
It is the same for 比如.

列出一些項目，但發覺這些只是其中的一部分，所以在最後補上。
List some items, but find that these are just a few of them, so make a final supplement.

問：妳喜歡什麼？  
Q: What's your favorite?

答：游泳、爬山、吃美食，比如（說）。  
A: Swimming, hiking, eating fine food, for example.


We usually don't write in this way because the grammar is not correct.