They settled in the sofas at the far end and began to play with some sort of mechanical toy.

The play retains its sparkle; here, though, it's like a shiny mechanical toy, buzzing and whirring, mildly diverting and inconsequential.

This exhibition presented a series of mechanical toy sculptures made of tin and wood.

His most common toys are mechanical toy chattering teeth of various sizes.

This applies most to niche categories, such as mechanical toys.