The Image Widget (ci-image-widget) free WordPress plugin

Using this simple image widget you can display a clickable image in any sidebar.

You can set the image to link to a URL of your choice or make it pop-up in a lightbox.

The widget uses WordPress’ built in media manager to provide you with a familiar interface for image upload / selection.

You can select the widget’s image size from the available drop-down menu which lists all available WordPress default image sizes.