You can totally use these sounds that I found in that you can use in your own projects, and you don't have to thank me for giving them when using them in your projects. BILL NYE THE SCIENCE GUY! KUBBI UP IN MY JAM ALL OF A SUDDEN! Also, see http://scratch.mit.edu/projects/20310394/ for number 2! If the mode is less than 50, the sounds will automatically stop when you press another button.
Credit to original