I have a 6wk old son who has been using a dummy. He has real trouble holding on to it and nighttimes can be a nightmare. I can be in and out of his room every 20 mins to replace it. I have tried to settle him without it but he won't have it, I have also tried various types (currently on the cherry sort). Any suggestions would be gratefully received..... and yes sellotape has been considered!!!!!!!