Prep the watermelon: Slice off the rind, then cut the flesh into neat, even cubes. Pat the cubes dry with paper towels so they don’t drip.
Cube the feta: Cut block feta into similar-sized cubes. If it’s very briny or soft, pat it dry so it holds its shape.
Make a quick drizzle (optional): In a small bowl, whisk lime juice, a little lime zest, and honey.
Add a splash of olive oil and a pinch of pepper. Taste and adjust sweetness or acidity.
Assemble the skewers: Thread one cube of watermelon, a folded mint or basil leaf, and a cube of feta onto each toothpick. You can also do watermelon-feta-watermelon for a snug fit.
Arrange and finish: Place skewers on a platter.
Drizzle lightly with the honey-lime dressing or balsamic glaze. Add a final twist of black pepper and a few extra herb leaves on top.
Chill briefly: Refrigerate the platter for 15–20 minutes so everything is cool and crisp before serving.