I created this project containing some custom blocks that let you easily position the beetle at every point in a grid, or on a circle, or on a sphere, and then draw things there. It's a "C" block (like the repeat block), but it will run what inside after the moving the beetle to each point. So you can for example position a blade of grass at each point on a grid, put spikes at each point on the surface of a sphere, or put letters around a ring.
There are several stacks in the project that you can click to see different examples, with comments.
To use these custom blocks in your projects, you can simple save a copy of this project and start from there, or use the 'export blocks' option in the file menu.