Wanted a river that was 6 inches wide so whipped this up myself.
The texture is added on with filler and sand.
Since printing these I did modify the file so it will be more robust than the ones I printed with a better dedifferentiation between the river and the bank. Overall the river bank is designed to be low profile and easily playable.
You can have these as a river alongside a board edge also.
River_Body.stl | 12.3KB |