In a bowl, combine the chopped lobster meat, mayonnaise, lemon juice, chives, salt, and black pepper. Mix well to coat the lobster meat evenly with the dressing.
Preheat a skillet over medium heat. Brush the outside of the buns with melted butter.
Toast the buns, cut sides down, until golden brown.
Portion the lobster mixture into the buns, filling them generously.
Combine the sparkling water, lemon, and chia seeds. Stir and let sit for 5 minutes for the chia to bloom. Serve over ice if preferred.
Serve the Maine lobster rolls with potato chips, pickle spears, and lemon chia sparkling water.