It's a wedding thread so one way or another you'll get something you didn't expect.
As for some of the comments, I'm amazed, but guess most of them are from non-pro's.
If the bride wants it she's entitled to ask for it, its then up to you whether to do it or not.
Not everyone in this world is on TP and therefore thinks colour popping is old hat and tacky, lots of people still think its cool whether we do or not
If you run a business you try and give what the client wants if you can, all this "who's the artist you or her?" *******s gets up my nose.
Easy tiger...
The artist comment came from a full time pro.
Most comments have either been that it will take time so charge accordingly, or don't use plugins cos they look like poo.
There have been several replies advising the best way to do it, and pointing out that it's not a quick job as each piece of confetti will need to be perfectly masked, and this would be done manually.
There have also been suggestions as to using actions / plugins to fake the confetti, but that's going to give an image which is poor, and wouldn't be fitting with the standard of Dee's work. It would also leave the real confetti in there as B&W.
Dependant on the size the image, quantity of confetti, complexity of the background and how big it will eventually be printed this will take from 1 hour upwards to do to the standard that is fitting to the quality of Dee's work. 10x8 is going to need less time than 20x30.
So, by all means agree to deliver this to the client, but charge accordingly, and don't just give your time away for free.
If you're charging several thousand per wedding, then you can absorb the cost of time for the work fairly easily, but if your charging towards the lower end of the scale, your margins are much tighter, so time spent on work like this is going to eat into your profit more.
All the time spent editing that image for free could be better spent shooting for a fee.