I use a Blade Tech Universal "fits all" for my 26 when I want a belt holster for it. I use it in the appendix position, and have replaced the "loops" with a set of "J hooks", which are much less noticeable.
Best part about the holster is, it works with any Glock (in the same frame size), not just the 26, although it does look like it was made specifically for the 26 when its in there.
http://www.blade-tech.com/In-the-Wai...er-pr-814.html