As much as I'd love to be dripping in expensive jewellery all the time, that lottery win is still evading me so usually I just go for something fun and sparkly instead, and I can't help but love the glitzy cheapness of these bangles from River Island. They're just £4.99 per colour group, and I particularly like the green combo. If you want to find them yourself, the River Island website is made with flash, so I can't link directly to them, but click on 'jewellery' and they're the first thing you see.