Aurifil also has a 12 weight thread. I'm actually currently quilting a customer quilt with it (Clemson). My intention had more to do with the color (orange) rather than the intent of the thread "standing out", but it DOES show up really well.
And, as usual, I'm not having any issues with it (I LOVE Aurifil threads!!). Yes, they're a little linty, but it's worth it to me to know that I'm probably not going to have any issues - no breaks, no shredding, no skipped stitches.
I'm using my largest needle (Gros-Beckert #21) in my longarm for this.
I'll try to post pics once I get home this evening.
Here's a link to one place that shows the available colors:
http://redrockthreads.com/aurifil-th...FdJLDQodDV4M3g