I've got a set of HED wheels that I'm selling locally and I'd like to expand my sale opportunity, but am concerned about shipping.

I've never shipped wheels before and am curious as to the best way to do it. I know I can hit up my LBS for some boxes, but then do the wheels get shipped separately or do you tape the two boxes together...Or find a box big enough for the two wheels...

I'm trying to find the most efficient and safest method.