Create a set of four illustrations featuring a smiling octopus in chibi style. Each icon should depict the octopus holding a different object. In the first icon, a pastel blue octopus should be holding a pencil and writing on a notepad. In the second icon, a pastel purple octopus should be holding a telescope and looking at the stars. In the third icon, a pastel orange octopus should be wearning a hard hat holding a screwdriver and a hammer. In the fourth icon, a green pastel octopus should be talking through a megaphone. Each icon should have a clean and simple design, with the octopus being the focal point on a white background