I have items like fences, road barriers and the like to add to my cork or foam base on my HO layout. My question is simple:

How do you attach them. For trees and telephone poles I drill a very small hole and glue a straight pin. Just the tip of the pin which is very hard to cut by the way. This actually works well. The straight pin allows me to move the object around until I find the most pleasing position.

So what do I you do. Something similar? Is there an easier way?