Start by draping a piece of salami over the rim of your mason jar. More of the salami should be hanging on the inside of the jar than the outside. Continue to layer on the remaining 24 pieces in the same way.
Once all 25 pieces have been layered on, turn the mason jar over and pop out your salami rose.
Adjust your 'rose petals' to style your final rose and place it on a charcuterie board to serve.