Constructing the device requires zero deep-underground mining or Nether expeditions. The craft yields two functional units simultaneously, aligning perfectly with the reality that you must place them in facing pairs to form a complete circuit.
Open your standard 3x3 crafting table grid. Position a single iron ingot in the center box of the top row. Directly underneath it, in the center of the middle row, set one stick. Conclude by placing any variant of wooden planks directly below the stick in the bottom row's center box. The exact species of wood, whether standard oak, dark oak, warped stems, or pale garden wood, does not alter the mechanical behavior or skin texture of the resulting hooks.
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[ Empty ] [ Iron Ingot ] [ Empty ]
[ Empty ] [ Stick ] [ Empty ]
[ Empty ] [ Wood Plank ] [ Empty ]
This vertical alignment reliably deposits 2 tripwire hooks into your output slot. Because iron remains one of the first renewable resources secured via early-game iron golems, crafting these mechanisms in bulk represents negligible overhead for fledgling factions.