A desk-edge knock toy. Clip Ember Knock onto the edge of a desk, kitchen table, or windowsill, then tip the arm to hear a soft knock against the wood. It sits quietly between taps, ready for a fidgety break during homework or a call. Kids like the tap-and-listen rhythm; adults keep one by the keyboard for an idle-hands habit.

How it rocks. Press the long arm down and the whole rocker pivots inside its rounded throat, the same grip that clips it onto the table edge. Inboard, the weighted globe swings the far side up, and as it settles back the underside striker taps the tabletop once before twin return pads catch the rock and level the arm again.

The edge grip. The rounded throat is sized to grip a rigid table edge, clamping snug without marring the wood. Twin pads under the throat meet the tabletop first on the return stroke, cushioning the stop. The whole rocker is one continuous PETG piece, about 3.3 inches long, with fine printed layer lines across every surface.

The ballast weight. The globe sits inboard of the pivot, its mass the only thing that returns the arm to level after each knock. There are no batteries, no motors, no glue and no separate springs; gravity alone resets the rocker. It arrives as one finished PETG piece, ready to clip on and tap.