Textile Cone (Conus textile)
Looks harmless enough right? Think again. This pretty little shell actually contains the cone snail, the most venomous of the 500 known cone snail species. Several human deaths have been attributed to these pretty little shells after being picked up at the beach. How? When picked up it shoots a harpoon like dart and injects a neurotoxic venom. When an Aussie tells you repeatedly not to pick up random things and to watch where you put your hands, listen.