My friends husband is really into photography and spent thousands on cameras and equipment etc, last summer he took some gprgeous pics of my kids at a bbq and sent them to me (he should go pro!!) anyway we asked him if he would be interested in doing our photos on the day and we will pay him for this.. (we dont want loads of 'posed' group shots, just a few natural ones of us and the guests,cake, decorations etc...he has agreed but wont take payment he said it would be a pleasure and was thrilled we even considered it etc but we want to get him something! he is not only doing us a huge favour-I know he will be so dedicated , he is also saving us a fortune..
I dont want to embarrass him by handing an envelope with cash in it on the day, what do you think??? give him cash the day after? or a voucher? we thought about giving him about £200 but dont know in what 'format' or when to do it!