i mark my eggs with a water based marker pen that i was given till now but alas it has stopped working so i went to the news agents for a new one and they dont actually say if they are water or ink based so my question is the ones marked washable are these water based

id think it would be water based if its washable hath, but itd probably be better if you went to a proper stationers and asked them, they should be able to tell you

cheers chirpy