Pat Hawks

CAYdenberg

[catthumb id=”CategoryID” link=”true”] will find the most recent post in the specified Category with a featured image and return the thumbnail for that image. If link=”true” is specified, the image will link to the category specified.
You can optionally search custom post types with the <code>post_type</code> attribute, and specify the thumbnail size with the <code>size</code> attribute. IE <code>[catthumb id="CategoryID" link="true" post_type="restaurants" size="full"]</code>
The plugin will only search featured images, not attached images. It will not look for images embedded in the post itself, or other attached images. If a category does not have any posts with featured images, this plugin will not return a thumbnail image, even if the category has posts with attached images.

Category Thumbnail

Adds shortcode [catthumb] to embed a thumbnail image for a category.

WMEric

This free WooCommerce extension permits you to hide categories on your shops main page. 
For this you have to save the categories with ‘,’ seperated in woocommerce > settings > products tab section.
In order for this to work you have to have Categories displayed. This can be set via Customizer. Appearance > Customize > WooCommerce > Product Catalog.
“Choose what to display on the main shop page.” Select Show categories as seen in the Screenshot below.
<h3>Additional Information</h3>
For users who has a different/custom page for their shop you can edit the wc-hide-categories.php file 
Find line # 127 and remove //
<pre><code>//$mwd_opt4 = in_array( 'product_cat', $taxonomies ) && ! is_admin() && is_page('YOUR_PAGE_SLUG'),
</code></pre>
Then find line #129 <code>/*|| $mwd_opt4*/</code>
Change to 
 || $mwd_opt4
To remove products from those categories find line 160
<pre><code>// Uncomment the function below if you also want those products hidden
/*
 add_action( 'woocommerce_product_query', 'mwd_hwcosp_remove_product_in_cat' );

 function mwd_hwcosp_remove_product_in_cat( $q ) {
 //hwcosp_global is the databse row entry
 $opt_terms = get_option('hwcosp_global');

 // Processes our users data to the way we want it from above
 $data = mwd_hwcosp_comma_separated_to_array($opt_terms);

 $tax_query = (array) $q->get('tax_query');
 $tax_query[] = array(
 'taxonomy' => 'product_cat',
 'field' => 'slug',
 'terms' => $data, // Set Category Slug which products not show on the shop and Archieve page.
 'operator' => 'NOT IN'
 );
 $q->set( 'tax_query', $tax_query );
 }
*/
</code></pre>
The code is well documented so its easy to find what part you are looking for
If you have any question please ask in the support forum, Thanks

Hide Categories On Shop Page

Not only doesn't this plugin work right.  It throws PHP warnings and fills the error log.  
At this point, this plugin hasn't been updated in over a year.

This doesn't work

Simple solution to hide specific categories in you woocommerce shop main page i.e. domain.com/shop This plugin was based on WC Hide Categories On Shop …

Category Thumbnail vs Hide Categories On Shop Page