GreenWashing Propaganda technique help.?

Were learning propaganda techniques in english, and we all got a different one. I got green washing. and we have to find 2 examples from advertising and 2 examples from real life text. Real life text includes, magazines, newspaper articles, brochures, billboards, textbooks. I cant use online examples. Im going around the house trying to find "green" things, i found Crayola eco-evolution crayon box. It saysm a new tree is planted when one is used for their pencils, and they use recyclable plastic in their markers, how can i prove that their not actually helping the enviornment?