The Scribble shape is one of the latest features added to the Tinkercad Basic Shapes menu. By dragging it on to your workplane, you’ll be given a new view that allows you draw shapes with your mouse pointer or fingertip.
Once you’re finished, click Done, and your hand-drawn object will appear on the workplane. From here, you can further shape, extrude, reposition, resize and manipulate your object until you’re happy with it, just like any other shapes.
Let’s start by dragging scribble on the workplane and click on edit scribble.
Draw your desired pattern and click Done to transfer your pattern on the workplane.
Now manipulate it according to your need.