The children of Bree Town are in need of some cheer!
'A great many children have come to see the fireworks on display, ${PLAYER}. I have something for them. Now let us see, where did I put those? Just a moment. Ah, here they are.
'Give these sparklers to the children to play with while we set up this evening's celebration. The smiles upon their faces always brighten the experience. Off you go now.'
You should give Gandalf's sparklers to the children of Bree.