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.

Milind Deshpande

This plugin builds Multiple custom posts for different product with thumbnails,price,tags,featured image under different categories.It is useful for small business those want to display their own products with categories, prices as they can set.

Custom Posts For Product

Builds custom posts for different product with thumbnails,price,tags,featured image under different categories.

Product & Category Image vs Custom Posts For Product