I don't know which new custom made sporrans you mean, but yes the sporrans which were formerly worn by Sergeants and Officers of the Argyll & Sutherland Highlanders (of Scotland) are badger with a brass (or perhaps gilt) rim at top.
I used to own both this sporran and the Other Ranks sporran and the cantles, though both brass, were not shaped the same.
On the badger sporran the six tassels are suspended by gold bullion cords, and the cones are AFAIK unique to this sporran, gilt, thistle design, with the ends serrated resembling pinking shears, or zigzag one could say.
One thing to note is that Scottish badgers and North American badgers have faces differing in colour and pattern as well as overall size and shape. In the latter days of the Argylls I saw a number of North American sporrans (by L&M I think).
Here are traditional ones made with British badgers. You can see the proper cones, gaskets, etc.
Here's one made with a North American badger. You can see the cantle shape fairly well. This has the correct cones. The leather gaskets in the cones should be red leather, not black.
Here's an OR's sporran. You can see the different cantle shape.
If your impression is of a piper be aware that the Argylls pipers wore completely different sporrans, like this
The Pipe Major and Drum Major wore a different sporran yet; this is the newer type
and this is the older type
A Private showing the OR's sporran
And Officers had two sporrans, the badger one and the Levee Dress one
Here showing that the badger sporran was worn by Sergeants too
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