What the title says, really.
I want a small item (small enough to carry around outside the house) which I can use to pulverize any table food items that might be too challenging for the baby otherwise.
It's fine if it is not specifically designed for babies but still works well for this purpose (have heard of people using garlic pressers and ginger graters for this purpose.....?). Would prefer something non-plastic like glass, ceramic or metal.