Mine

Tin mine, coal mine
All mine: gold mine
Poor light: illu mine
Decide to put off: deter mine
Racy in red: car mine
Not so sure: er mine

This huge WWII mine stands on the quayside in Dartmouth, Devon (across the road from public loos!) and is now used as a collecting box for funds in aid of the Shipwrecked Mariners' Society.