There have been some advertising scales in orange, IIRC, but they are rare as hens teeth. I guess your best bet would be something in this direction:
http://forum.multitool.org/index.php/topic,63128.0.htmlThen there was PTRSAK whgo did acrylic scales a while ago - He is not as active as he used to, but I guess you can reach him.
MWDP does superb scales in wood, Micarta and G10, so he might also be able to help.
There are more members who did custom scales, but those are the ones I remembered and who seemed to fit the bill.
If you want to stray from the champ, Wenger had some translucent orange knives and the 93 mm alox range offers different hues of orange, too.