1. A Spyderco.com Forums member, Hector Castro, has began to make handles for the Mules. He is working with both wood and synthetic materials like micarta and G-10. I have a set of his scales, and I will do a write up, but until then, here are a couple threads from the Spyderco Forums, that will give you some background information.

2. Halpern Titanium is currently manufacturing grips for the Spyderco Mule Team Knives...

I have received my grips, and have completed my article, with images, you can see it at...
http://eyeoncutlery.blogspot.com/
To those who have read it, you may want to glance at it again, I added an image, and I have included a link to close-up images of the hardware and such.
As well, I have added a section about oiling your scales for the best color.
And, I now have all three colors, and have put photos of them up
Note - Halpern Titanium machined a limited number of handle scales, but I understand that they still have a few left. Most likely, they will sell out pretty quickly once the new Mule arrives, so best not to wait until then, or you may have to wait until they find time to make more.
http://www.halperntitanium.com/
3. Another Spyderco.com Forum member JLS, is offering some good looking leather sheaths, and, it looks like I will be reviewing one of them, so keep on the look out for my review.
4. Blind Horse Knives has, in the past, made handle scales for the Spyderco Mule Team Knives.
I have ordered a pair of these handle scales, and should have them within the next month. At which time, I will do an initial review.
5. Tomorrow is the release of the new Mule, MT06 in CPM-S35VN.
6. Phillip Dobson, a wood-worker and knife maker from the great state of Montana, has handled a Mule, and his work is beautiful.

7. I am always making additions and corrections to the MuleProjects, so feel free to stop by and check it out...
http://muleprojects.blogspot.com/
8. Finally, let me mention... If there are any Mule Team Knives resources that I have missed, including one you might have created, please let me know, and I will add you to my site.
Enjoy your Mules!
Marion