Determine German Grammar for Language Card Game - Fun Job

We have created a new card game called KLOO....as you play the game you learn a language. Launched just a year ago it has won many awards and is used by families and schools. Currently the game only exists in English-French and English-Spanish. We are now interested in developing the concept for German as a foreign language. The game uses coloured cards. Using a special system as you place the cards in a certain colour order they will always make sense. This works very well for the Romantic languages. However we are not sure about the German language and need a grammar expert.

We want to find an expert German speaker (we use teachers a lot) who can look at the KLOO concept and determine how (and indeed if) it will work for the German language. We can provide the possible words and also send you some decks of French / Spanish cards - you figure out how it can work. It will be a bit like a language Sudoku puzzle....if you like puzzles you will love this challenge. You will then show us your findings and hopefully we can go to the next stage.

If you are successful there is more work for translation and further game development...but this is the first step.