Making nice, round melon balls isn’t difficult once you learn the proper technique and practice a bit. Press the melon baller down firmly into the melon’s flesh, digging it in until the scoop is completely filled with fruit, then use your wrist to give the baller a twist inside the melon, making a full round.
Ripe, juicy melons can produce a lot of wet mess while you’re preparing them. Cut cantaloupes and similar melons in half before carving them out; the juice stays in the half melon, says ctl98. kitchenhag scoops melons in the kitchen sink to contain their juices. Melon ballers are also useful for neatly scooping the cores out of halved apples and pears.
Board Link: Melon Baller Techniques?