Slice your whole pickles in half lengthwise if they are not already halved. Use a spoon to gently scrape out the inside of each pickle half, creating a little well for the filling. Don’t scrape too deeply. You want enough room for the filling, but you still want the pickle to hold its shape. Cut each pickle in half so you have two ends pieces.
Finely chop the pickle insides and set aside.
Finely chop the hard-boiled eggs and place in a small bowl.
In the bowl with the eggs add mayonnaise, finely diced pickle, mustard, and salt. Mash together with a spoon or fork until well combined.
Spoon the egg mixture into each pickle half.
If you would like to garnish, you can sprinkle the top of the filling with a tiny bit of sweet paprika and/or chives, then serve.