[Clyde Slick]

On 2 Oct, 20:58, UnsteadyKen wrote:
Affan *wrote...
I want
to know what would be a good surface, that can be found easily
(nothing fancy) or is in everyday use, which will be a good reflector
of the sound energy

Sounds like glass would be ideal. Grab a mirror from the mens room.


or pry one of the tiles off the bathroom wall
If you need a concave surface, the urinal would be ideal.