Can you recommend any toy that is ideal for a restaurant dining table play? I think there is a better substitute to iPhone/iPad!

How about books? I think kids get bored easily so no toy will be a good toy . If really need to get one get those that can be suctioned onto the table so that baby won't remove and throw it on the floor. I know The Leap Frog has a Ferris wheel one. Or maybe can try one of those dancing toys like fisherpiece beat glo?