This week-end was the "Ile de Paix" ("Peace Island") action.
They are selling those modules to collect money for their project.

When I was 10, we have been asked by the school to sale them.

Now every year, I buy a set and I receive also few sets from people who know I'm collecting them.

I have a full box of those little men! Here are the one I collect for the last 2 years.