I’ve just found and posted in GitHub a pair of  old and forgotten projects  I had around my HD: ThumbCreator and Patchwerk.

Both were developed with Visual Studio (C#). You wouldn’t believe how much I miss that  IDE now that I’m stuck with Eclipse and Xcode.

They never were Opensource to begin with , but what the heck, they are simple and maybe someone will send some pull requests with improvements or fixes – In fact, you are encouraged to do so.