This application makes the last tweets you wrote that someone retweeted available as a widget that you can embed it in your blog, profile, etc. (and also as JSON, so you can retrieve them anywhere)
To begin, you need first to authorize the app on Twitter. Go ninja, go ninja, go!
WARNING: It will make the retweeted tweets available to anyone that have (or can guess) the URL. Not a real security issue, since they were supposed to be public anyway - but if that is a concern for you, don't use the app.
The service is hosted on Google App Engine and the source code is available under the Apache License on GitHub. It is provided with no warranties other than my good will.