jonaspiela

Add a short teaser text with page thumbnail and link it to a page in your sidebar. The plugin takes care of correct linking. I am using the plugin on my own <a href="http://www.jonaspiela.com/" title="Jonas Piela" rel="nofollow ugc">website</a>.
Check out more details and screenshots <a href="http://www.jonaspiela.com/2010/12/24/wordpress-plugin-page-teaser-widget/" rel="nofollow ugc">here</a>.

Page Teaser Widget

Easily promote pages in you sidebar and forget about not updated links.

shifashaji

Product Teaser Pro allows you to display short teaser messages on product pages and product listings. 
It’s perfect for highlighting special offers, features, or calls to action for your store items.
Features: 
– Add teaser text easily from the product edit page. 
– Display teaser messages on both product listing and single product pages. 
– Lightweight and optimized for performance. 
– Works seamlessly with WooCommerce (only if WooCommerce is active).

Product Teaser Pro

Product Teaser Pro lets you add short teaser messages to your products to catch customer attention and highlight promotions or key details.

Page Teaser Widget vs Product Teaser Pro