Climate Change College, where every subject from literature, calculus, macro-economics, history or animation, is taught from that perspective.
Spell-checker dry erase board marker so you don't have to interrupt your presentation saying "Is that how you spell it?" (Incidentally, it could come with replacement felts to reduce plastic waste.)
Transparent car engine models for display in the garage where you get your car repaired so you can understand what they're talking about and ask questions.
Small name tags for the handles of coffee mugs and tea-cups to keep other people's spit out of your drink.
Self-heating hats. Self-cooling hats.
Scan-able codes on food packaging to take you straight to recipes.
Mutation generator that takes your creative input (words, music, designs, plans, colour palettes or whatever) and outputs a random assortment of variations for you to choose from to kick-start your creativity.