I made a Suns helmet using davidson's amazing template a while back and recently started messing around with a couple other ideas. I won't be doing every team, just a few that I think are interesting or like the look of.
For those interested in a much fuller treatment in the same vein, check out JPDesign's great thread from last year.
Here is the Suns helmet:
I'd like to do a throwback version with the more purple-y purple and the 90's version of the shooting sun, but I couldn't find a good high-res version of it.
Next is a Jazz throwback helmet inspired by the late 90's jerseys. I personally really like that jersey even with its gradient, crazy colors, and '90s tackiness.
I did experiment with adding a logo ("Jazz" and "UJ" wordmarks) but it was a bit cluttered and just didn't quite work for me, so I decided to keep it simple.