There are a lot of items in the Laboratory thread (https://forum.atlas-games.com/t/ars-magica-laboratory/147/1) but sometimes it's the little things that make a difference.
- A pot that turns anything made from vegetable matter into pleasing foods (no change in nutritional value but tastes much better).
- A grind stone that automatically grinds wheat into flour.
- A bucket that purifies any water inside it.
- A small device that kills all bugs/insects/vermin in a room.
- A brazier that keeps a sick room warm.
- An icicle that keeps a larder cold.
- A lamp that sheds light without burning.
Eric