random order – items ('products')

I want to produce a ‘list’ of items. Each item actually consists of a header/title, a photograph and a sentence or two of text. Obviously, each can be wrapped in a <div>. There are about 70 of these items.
I would like them to appear on the page in a random order – that is, not title alphabetical or html order.
It is somewhat akin to a products page, where the products have a randomised sequence on the screen, rather than an optional sort based on price/whatever.
Can any kind person suggest a way to do this, or a widget that could do the same? Thanks for any assistance.