Create a set of 3 to 5 cute and whimsical hand-drawn elements that a bored adult might draw, such as a mushroom, a line-drawn car, and a poorly but cute drawn dinosaur. Each element should be distinct, playful, and spaced out with plenty of white space around them. The elements should not be too small and should leave enough space around them for additional drawings. Ensure the design has a transparent background, and the elements should fit within a 4500 x 5400 pixels canvas.