Hi There Alex. Hope you are well. Ride Safe:
There were two types of mounts:
One was the PlanetBike:
http://www.mec.ca/Products/product_d...=1190340747314

The other I picked up in the actual store, in the same area:
Shark Light Bracket Support Phare Shark 5014943

259147

In retrospect, I would have used two PlanetBikes. $3.50 + $3.50. You will also need a single screw.

But damn, two zipties, and 65 seconds! Damnit!