Joe Bobst wrote:

Any ideas?

See if you can find a sink cutout at a local cabinet shop. They may have
anything from a piece of marble to Corian or other popular materials. One of
those ought to be heavy enough and waterproof enough to do the job just fine.
Take in a pattern and thay might cut it for you for a nominal fee. HTH

Joe

Hi,
Or just a piece of wood board and glue down tiles on top.
Be creative.
Tony