I'm having a custom mouthpiece bag made for me...
I've been a fan of Etsy for a while, and have purchased from an artist there before...
.. but I decided to test out their "Alchemy" feature which allows you to describe an item you'd like to have made for you... and then various independent artists can bid on your item...
So I'm getting a pouch made to hold 4 mouthpieces. It's going to be padded and everything. I would have been okay with the standard mouthpiece bags, but well, after awhile the plain black gets boring.
Luckily, I found an artist who used to play tuba and her husband played trombone -- so they know about mouthpieces.
And I'll get a custom bag for $25. Not bad in my opinion.
I'll let you know how the progress goes.
If I like the bag, I think I'll have one made for my euphonium care products. (and have the inside lined with some waterproof material, just in case things leak.)