You can pop the arms off of your wipers (mark their position first) and hit them with a shot of Krylon. It's pretty common for our trucks (imports in general for some reason) to lose the paint in that area.

I did mine a year ago with the same wheel paint that I ended up using on the Nissan rims.

I use Bosch Winter wipers (all year 'round). They have a rubber cover on them that keeps out the ice as well as protects them from trail debris (sticks, trees, spectators). They were still flexible at -50F.