Garden manager. Put in your zone, pull information from web (not sure where but fields like light level, germination/fruiting times), link to a calendar and add custom scheduled items (monthly fertilizer, watering schedule maybe even based in local " of precipitation (if you've had 5" of rain, apply that to "outside group" but not "inside group" of plants, pull links to About information for wikipedia or other pages, maybe even highlights of cooking or medicinal uses.

Commented with my fix; in pfSense I have all port 53 traffic redirected with a NAT rule. Works great and catches any devices with hardcoded DNS.