Yes, first there was the Vibraslap, then came the Flexatone, now introducing the "Vibratone Bell". What is it? Found in most schools anywhere. Tis a loud ear shattering bell for fire alarm system and comes in two sizes. Also, recall the sound of the "round bell" during a boxing match? Same although sounded manually using a striker.
We have one such bell here and man can this thing shatter your eardrums!
"Use in any industrial application as a danger signal or to initiate start or dismissal. Vibrating bell produces a continuous ringing sound that can't be missed. Designed for AC operation, Bell is UL- and cUL-listed, CSA-certified and FM-approved. Output range is 98-102dB at 10 ft. 120VAC. Available in 4" or 6"."
Note, the bell can be unscrewed from the electronics and used manually. Trust me, we have a 6" one here and I have been experimenting with different objects to strike it. Sucker is LOUDT!