Instead of doing something completely new, just a port a solved problem to the language you want to learn and have some fun. Presentation is showing binary strings and charlist strings, Elixir String Module, iterating through a list, some code generation, definition and implementation of a protocol.
- 2016-03-29: Hamburg Elixir Usergroup/Meetup (hh.ex, http://www.meetup.com/de-DE/Elixir-Hamburg/)