As artistic co-ordinator of the WBKE, I can asure you that the best tissue to use as a repair medium, is from the Izal group of companies,as it is mildly disenfected it is also totaly hygenic ( as long as you remember to wash your hands )and should be safe for anyone to use your Kazoo, without risk of infection especially if you should have cold sores,herpes, oral thrush or just bad breath. To all kazoo players I can only reiterate the WBKE motto "if you can hum it we can play it"
Keith