I was taking some stock photography for our library on Alamy at the weekend....Messing around with perfume bottles, orchids and bubbles as you do. Anyway, I really wanted to create a 'water splash' effect which usually involves such wizardry as infra-red triggers and such. After a lot of research (surfing) I came across a very talented photographer over in the US called Alex Koloskov who produces amazing photographs and then very kindly shares his technique. Click on the link above to see how it's done, but essentially it's a question of degree...Or rather 180 of them..
Personally I think these type of shots really elevate product photography to something special and eye-catching. So if you're in the States, give Alex a call, but if you're in Scotland or the UK we're closer :)