at first I was putting three drops of this gel super glue on 3 points of contact of the caps

but it proved to take forever though the result is a lot cleaner than just

which I used for the second half with less precision in my technique at about a third the time and usage(IE putting a lot rather freely on the foam core where the cap would end and holding it for a second) Both don't take a whole lot of time to stick, 3 seconds top.
If you do it, keep in mind that if you want all of you logos to be at the same angle next to another, the 'teeth' around the cap need to be taken into account since it adds a 16th of an inch when you don't interlock them. Otherwise the caps are exactly 1 inch in diameter. Also, use only twist caps or you'll end up having to deal with bent caps which have less surface to work with meaning less adhesion.