Tiny Tuesday: Junk Drawer

The final Tiny Tuesday theme of April from MaryElizaR is something tiny from the junk drawer.  Like, I would think, most people I have such a drawer in my kitchen full of useful items; after all, it's only 49 years since decimalisation so we still need a currency converter, right?  That old mobile might just be useful one day?  And I know we don't have a gas meter cupboard (we don't even have mains gas) but you never know when someone might ask to borrow the key to open one.