Imagine the sims are coming out with a massive update

Composting workbench area that produces average to excellent fertilizer for plants (depending what you add to composting bin or tumbler) and can produce gas for off-the-grid power.

Some of the earlier suggestions sound great as well. Love the idea of a hot chocolate machine that could make different drinks (hot chocolate, chili chocolate, white chocolate, mocha...) would be great for kids, teens and those adults who prefer chocolate.