I wouldn't sweat it - go right thru the "nothing to declare" line......highly unlikely to have any issues. If discovered & asked? Gifts for friends, just MHO.

Just don't wrap them - those US TSB dudes and dudettes just love to open gifts. I've seen people in tears re-wrapping their gifts, and in all fairness, often the TSB dudettes helped, time permitting.

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But then what do I know, I am but a mere caveman