I don't know where to contribute a joke.

You can send a few more. Because at the beginning of writing, newspaper editors didn't pay much attention to you, so it would be better if you had suitable works for them. If you say they are not very good, they won't notice. If you want a newspaper mailbox, you can find it online. It's simple. I'm sure you will find it.

If you are just joking, you can post some evening papers. Try more!