WRT QR codes: I brought this up when chatting with the British Library. If it were part of a temporary exhibition (the BL has a funky new-media room in the foyer area, for example) then a demo using QR codes and a free smart phone app(*) would be an easy thing to show off and less controversial than sticking new labels all over a museum. As the QR codes can point to an official website (or database record for the item) this would not need to be a Wikipedia specific initiative.
If someone is into this technology, perhaps we can make such a demo part of an upcoming workshop/edit-a-thon event with a relevant GLAM (like Derby or the BL)?
(*) The BL recently made a great hoo-ha about their new smart phone app, see http://www.bl.uk/app/
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