If you wanted to give someone a present and it was going to be a brush, get one of these wire brushes. How often have you read some instructions that say "get a stiff brush..." or "using a wire brush, gently....". And there is never one to hand. Yes, you could use them as a suede brush (but not if you've just cleaned your spark plug with it).
The larger ones are 22cm long (8.5 inches) and the smaller one is 15cm and will fit in your 'junk drawer' fine.
For grills and barbeques, you might want a different shaped wire brush with a shorter, stubbier handle... click here.