The yellow foam ear plugs are the best at reducing sound. Often, the MRI clinic offers the bell or horn shaped foam plugs because they are more comfortable. You can also get plastic head phones that do not have any metal in them. I've seen them in the dollar stores but the usually sell for a few bucks.

Using the yellow foam ear plugs and the red plastic head phones can be very beneficial. Get the foam ear plugs in deep. Twist them tight and they will insert easier.

The auditory overload can cause a need to rest for the next day or two. Having a ride home is a good idea.