My own son is pretty green. He'll adjust his wants often to stay green - i.e. choose a lunchbox he doesn't love the design of if it's green vs. a toxic lunchbox he does like the design on or give up treats that are not organic or over-packaged. But like all kids there are some things he adores that just aren't very eco-friendly, like his favorite toy Lego Sets.
He has a lot of green toys, but also I will buy him the Legos even though their non-green quality bothers me. I figure that for an eight-year old he's pretty eco-savvy so to ban everything would be nuts and maybe not fair to him. Especially since I'm sort of a crazy person about food - we do stay organic in that department, with very few compromises.
When your kids want toys or goods that are non-green how do you handle it?