Bibiai

If you need all your products to have the same image, this plugin is perfect for that, and it doesn’t require any previous adjustment.
It automatically assigns the image of the category to all products that are within that category. When you create or modify a product it will be assigned automatically.

Product & Category Image

If you need all your products to have the same image, this plugin is perfect for that, and it doesn't require any previous adjustment.

coffee4dev

This simple plugin creates a category widget that allows you select the category to display
<ul>
<li>
Select category you want instead show all category
</li>
<li>
Limit the number of category display
</li>
<li>
Show count post in category
</li>
</ul>
<h3>Arbitrary section 1</h3>

C4D Woocommerce Category

This simple plugin creates a category widget that allows you select the category to display

Product & Category Image vs C4D Woocommerce Category