Hello
See theese projects
http://scratch.mit.edu/users/pommerit
I have made a start project for all the pupils 8 and 9 years old and they remixed its.
They only have to change lego models (pictures exported with blockcad ) , two variables (number of models and answer's position in the list ) descriptions and sounds.
It is in French but you can use it in your language
Enjoy
Alain