Mechanical Spider-Trap Mug Coaster - Gravity-Activated Halloween Desk Prank

#CULTSOWEEN This is a mechanical spiderweb coaster designed as a desk prank for coffee or tea drinkers—and it doubles as a cool articulated cup holder once the scare is over. When the coaster is empty, the four jointed spider legs lie flat around the outer rim. As soon as someone sets their mug or glass down onto the center web pad, the weight of the drink presses the trigger plate down and levers all four spider legs straight up around the mug (right as their fingers are still letting go of th…

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