As I'm now noticing that the visual image for a "waterstone" may be difficult....I'm thinking maybe this type of design (see links below) would be more appropriate for what I'm looking for. Sorry for the confusion....hoping this helps.

https://storage.designcrowd.com/design_img/890071/147540/147540_5108989_890071_thumbnail.jpg

https://storage.designcrowd.com/design_img/926847/110447/110447_5311184_926847_image.jpg