Insta Putty Earplugs from Snorestore - silicone for comfort, fit and a peaceful night
Ear Putty Silicone Ear Plugs
Mack's Pillow Soft Silicone Earplugs - 6 Pair (Pack of 2), Value Pack – The Original Moldable Silicone Putty Ear Plugs for Sleeping, Snoring, Swimming, Travel, Concerts and Studying White : Amazon.co.uk: