Lestrade was a kettle. Though at the moment he didn’t contain any water.
John was a small Watson teapot. Though at the moment he didn’t contain any tea.
Sherlock was technically a Holmes teapot. But after getting into a lot of hot water he was no longer capable of holding it, so Mrs Hudson used him as a vase.
At the moment though he didn’t contain any flowers. He did however contain a mouse.
“OK in there, Mouselet?” called John.
“I’m fine!” she called back.
Mouselet did feel a fool. She’d been examining Mrs Hudson’s biscuits in the cupboard directly above Sherlock and lost her