DanCoulter

Once activated, this plugin will translate every instance of the jQuery UI 
Datepicker plugin on your blog. It even comes with the latest version of 
the jQuery plugin, so that you can add it to pages on your blog.
This will only work with version of the Datepicker plugin that come with 
jQuery UI versions 1.5 or higher.

Datepicker i18n

Globally translate your jQuery UI Datepicker instances.

Nikolay Bachiyski

Checking if all the strings in your plugin or theme are translatable can be a tedious task. Pig Latin helps you 
by translating all messages to <a href="http://en.wikipedia.org/wiki/Pig_Latin" rel="nofollow ugc">Pig Latin</a>. For example Edit Pages is translated to Editay agesPay.
Text in Pig Latin is both noticeably different than English and readable. This way you can spot strings, which aren’t translatable, while the interface is stil usable.

Pig Latin

I don't understand why this plugin has so few active installs, as it's an enormous benefit for plugin developers.

Apparently a hidden gem

What an excellent little plugin test tool! It makes it very easy to check for strings that missed being wrapped up for localisation. It's going onto the checklist!

cheers,
Ross 🐷

Demum, veniunt porci

I am currently working on a theme development. When I used this plugin for the first time, I just loved it. Thanks a lot for this plugin.

Awesome plugin

Overrides the current language and translates all messages into Pig Latin.

Datepicker i18n vs Pig Latin