Been there... done that.

For musicians, there are numerous options for pockets and holders. The only trick is prefectly lining-up the tartan to hide the outside applications. As for the inside pockets, it's not that tough. Hell, you can retro-fit them into any existing kilt with relative ease.

If you DON'T match-up, or make the pockets hidden, the things look REALLY tacky. Knowing TFCK, they're probably incredible.