My daughter's having a disco party for her 11th and inviting the whole year 6 class. She's just had a load of Christmas and birthday presents so is quite happy to put 'no presents' on the invitations. I thought it would be nice to ask everyone to bring a photo or something but of course she's too embarrassed - even though I think she'll thanks me in years to come! Or is a donation to charity a bit worthy? Thanks!