Green’s Dictionary of Slang

1. boys [sole example, but one-off invention is not uncommon with rhy. sl.].

1888

‘Jack the Ripper’ postcard in Evans & Skinner Jack the Ripper (2001) 60: Say Boss— You seem rare frightened, guess I'd like to give you fits, but can't stop time enough to let you box of toys play copper games with me.

2. noise.

1938		L. Ortzen Down Donkey Row 11: Box of toys – Noise.
1981		P. Wright Cockney Dialect and Sl. 106: There is no time at work to shout e.g. ‘Shut yer box of toys!’: ‘Shut yer box!’ is enough.