There are a good number of pipes with unique finishes, like the famed "coral" rustication from some of the Italian makers, and gorgeous contrast staining from master carvers, but who would expect a truly amazing finish on a pipe for less than $40? Take a look at Crown Manola Sandpebble.
Near as I can tell, this very different finish is achieved by sandblasting the stummel, followed by smoothing, a light golden staining, adding a medium brown stain to the sandblasted areas, then a final polish. However they do it, these are really neat-looking briars from one of Italy's largest factories, in five shapes, that look like they should be twice their price of only $35.99. You'll be incredibly happy that you added a Crown Manola Sandpebble to your rotation.
Note: Some models are unfiltered while others will take a 9mm filter and come with an adapter to allow them to be used without a filter. The 9mm models are noted in the name of the pipe below.