Being new to being a WG, I am yet to come across this problem but when I do I plan on simply notifying the client of the 'situation' and leaving it up to them to decide what we do... i'm expecting a fair few not to mind at all!
You will be suprised... Few men enjoy bloodsports..

My opinion is that its a personal thing .. something your likely to do with your partner,, not a stranger...
There are certainly the exceptions. ..
I find baby sponges are the best.. (however they aren't as absorbant so it depends what your flow is like.)
You won't feel it.. they won't feel it. ... Hey presto...
Dont forget. ... no fingers inside until the sponge is removed...
Just dont be silly with them. Cut them very neatly,, remove as soon as possible.. xxx