It wasn't actually a booth, I just set my camera up on the tripod in front of the french doors and pulled the roller blind down to act as a backdrop. I left the kids to get on with it, allowing them to choose their own accessories and operate the camera with the remote control. They had loads of fun despite Jack having a serious face - I think it was down to concentrating on pressing the button on the remote!
Of course the adults had a go too.
Loads of fun and so simple to set up.