Why not try to make one by ourselves?

为什么我们不试着自己做一个呢？

youdao

If you have lots of things and have nowhere to put them, and don't want to throw them away, why not try a car boot sale?

如果你有很多东西，但又没有地方放，又不想扔掉，为什么不尝试一下旧货市场呢？

youdao

Why not try once more?

何不再试一下？

《新英汉大辞典》

Why,it did not matter to him. He would try to make money on anything.

VOA: special.2009.08.29

and got a couple of compliments on my pictures, so figured, "Why not try this?"

然后照片受了点表扬，我就想“干嘛不试试这一行呢？”

拍照的理由 - SpeakingMax英语口语达人

And then of course, once we figure out why not, we try and fix it. but today I'm going to emphasize not how do you fix it, but how do you find out what's wrong.

我们就会去尝试着修复程序，但是今天我强调的,并不是怎么去修复，而是怎么找出来错误原因。

麻省理工公开课 - 计算机科学及编程导论课程节选

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