Use E-A-R Pushins Mushroom Shaped EARform Foam Uncorded Earplugs (1 Pair Per Poly Bag, 100 Pair Per Box)

3M Stikit 45215 Medium Yellow PSA Disc Pad - 5 in Diameter - 3/4 in Thick - 5/16-24 External Thread Attachment [PRICE is per PAD]