creating simple sound

You will be given a functioning fruit machine game program. The object is to find or create about 10 short sounds to go with the various game features. There are about 4 sounds of 4 to 5 seconds and the other 5 or 6 sounds are very short. These sounds are in an external folder, so adding them in can immediately be evaluated. Whichever sounds are returned have to be royalty free. Using and/or modifying existing sounds is allowed as long as they are royalty free and not too easily recognisable.