The twenty-six-pointed star seems to be a symbol for sunbursts, so here is a computer-generated, fully-stellated hexicosagon, ie. twenty-six-sided figure.
This is a completely free image Hexicosagram that you can download, post, and use for any purpose.
Image License: CC0 No Rights Reserved
You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission, and at no cost. This image is completely free.