I am sharing 2 simple plugins I did, so it will be helpful for new plugin writers.
My client wanted to add an award section. That is, he wanted to assign an award for some post and display it in the front end under the title of the post. Each award has an image also.
So first he needs to create the awards. For that I wrote this plugin.
Now I have to display these awards when editing a post/ adding a new post.
For that I used the following plugin: Adding custom box
This plugin will save the award id as post meta. Later in the theme page we can call the post meta and display the award.