Playpiece

She was jealous of me going though, wanted to see the inside of the Laverys' house for herself, and was in a bad mood with me for the whole of the following day at school. She had three chocolate digestives for her playpiece and wouldn’t give me one.

Source: wiktionary

They would hunker down in a corner of the schoolyard at playtimes and he would give Betty whatever was left over from the night before, or whatever he had been given for a playpiece.

Source: wiktionary

There were also the 'playpieces' you took to school, although, to confuse the issue slightly, a playpiece didn't always have to include a bread sandwich. It could simply be a chocolate biscuit tucked into your leather satchel to be enjoyed at morning break along with the carton of free milk.

Source: wiktionary

There is no on-off switch here, because the computer is activated only when playpieces are pressed onto the peg-detection panel.

Source: wiktionary