TONSILLITHS. Most likely these are debris caught in tonsillar crypts. They would be benign but you should see ENT doctor for validation.
Tonsilliths. They are bacterial colonies that builds up in the crypts of your tonsils. See an ENT doctor for exam. And treatment options.
Tonsillar stones. The. White items represent debris caught in the crypts of the tonsils. They harden into "stones" and are benign.