How do you know you're officially an adult? When the smell of new folders and crowded school supply aisles stop evoking a bittersweet thrill. But here's something worth stuffing in the millennial generation's backpacks: woodless pencils from SF-based company O'Bon, which bypass the whole deforestation thing by wrapping the pencils' graphite 36 times in used newspaper. And the best way to embarrass text-happy kids who are too cool for school? Leave 'em an unabashadly mushy lunchbox note on bagasse paper (sugarcane pulp after it's been juiced) from an O'Bon notebook.

Available online at myobon.com.