Toy guns, anyway.
Any idea where I could get them? (Ideally between King's Cross and Archway so I can get 'em on my way home. If not somewhere near Oxford Street - would Hamleys sell them?)
I need ones relatively convincing. Not so much so that I could hold up a bank with them but if they could look plausibly like guns if filmed from the right angle on a video camera that'd be ace...