shortcode 

Author: David Potter Lets you add an image to a post or page from the WordPress gallery on your site using a shortcode. Simply add the wppgalleryimage shortcode and specify the image you want to add by name or ID
Installation:
Download the wpgalleryimage-shortcode.zip file. Unzip the zip file and copy the contents to a folder below /wp-content/plugins. Activate the plugin through the Plugins menu in WordPress. Place the [wpgalleryimage] shortcode in your posts and pages.
faq:
How do I display an image without a link? Omit the link parameter. A link is only added if you specify the link parameter.

Authors: achmafooma, sivel Moves the gallery shortcode styles to the head so it doesnt break XHTML validation
Installation:
Upload the gallery-shortcode-style-to-head folder to the /wp-content/plugins/ directory Activate the plugin through the Plugins menu in WordPress NOTE: See "Other Notes" for Upgrade and Usage Instructions as well as other pertinent topics.

Author: Alain Gonzalez This plugin allows you to include instances of Google Map in your blogs using the shortcode API. You can insert maps everywhere: in your theme files, posts and pages. The use of a custom field allows you to insert posts/pages on your maps as points
Installation:
Upload Google Map Short Code folder to the /wp-content/plugins/ directory. Activate the plugin through the ?Plugins? menu in WordPress. Go to the Google Map Shortcode Options page under settings and Insert your Google Api Key.

Author: Coen Jacobs Makes it easy to display a link to your own PayPal donation page. Includes options to set a fixed amount and select your own currency
Installation:
Upload paypal-donation-shortcode.php file to the /wp-content/plugins/ directory Activate the plugin through the Plugins menu in WordPress Enjoy this plugin
faq:
Are there any required settings to provide? Yes, the text and email setting are required in order to make the plugin work.