Start by taking your salami and pinching it in the center so it's folded in half with a gap in the middle. Put that gap on the rim of the glass.
Use that hand to hold it there as you do the same thing with another piece using your other hand. Place that second piece of salami slightly overtop the first one.
Continue doing this until you have a layer of salami that goes across the entire rim of the wine glass.
Continue layering your salami overtop each layer, overlapping the salami pieces even closer as you get closer to the center.
After each layer, or as needed, use the palms of your hands to cusp the salami against the rim of the glass so it stays put.
After placing all the salami in layers on your glass, use one hand and place it on top of the salami and the other hand on the bottom of the glass.
Flip the glass so the salami is resting in the palm of your hand.
Use the hand holding the bottom of the glass to gently twist the glass to remove it from the salami rose.
Place the salami rose wherever you'd like!