StealthUK wrote:
Just to add - the normal term is USB pen drive, NOT memory stick.
When
people talk of memory sticks it normally means the Sony style memory
cards to me which I doubt your daughter is after.

Nah... 'USB Memory Stick' is a far more common term, as reflected by a
Google search:

'USB Pen Drive': ~2.36 million pages
'USB Memory Stick': ~5.96 million pages