I was able to acquire a pair of new smoked JDM sidemarkers from a private seller for $55 shipped to me. These HELIX brand markers are also available through Amazon [ame="http://www.amazon.com/Subaru-Scion-Bumper-Marker-Lights/dp/B00C315NEW/ref=pd_sim_sbs_auto_1"]here[/ame] and I would have purchased them through Amazon had I not found them for cheap.
The installation was made easy with
this DIY . Total install time took about 15 minutes total. I did also switch out the amber bulbs to white LED bulbs (same bulb size as the rear license plate).
