Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
JetHop - Discover your next vacation without needing a destination!
Anchor CMS - Free and lightweight blogging system
Lilium - The world’s first electric vertical take-off / landing jet
Textpattern - Textpattern is an elegant content management system that is free, open source software.
Volocopter - The flying taxi