This site has some great resources on for looking at how some of the people who make our clothes are very unfairly treated.
You can find the resources section here.
There’s a whole series of resource on this site about teaching peace including prayers, activities and themes for sessions/lessons. You can download the whole things as one, or look at the individual elements. Take a look at them here!
Free resources with prayers and reflections from Loyola Press in the US. If you go back to the root menu youll find more advent bits and bobs.