Invader Maker
i originally wrote this for blitzmax back in jan of 2016.
The principle is the same:
[1] Generate 9-16 dots in a 4x8 field. (4-across cause it's mirrored when plotted later)
[2] Ensure all dots touch each other. (no stray dots)
[3] Mirror the field horizontally. (pixels 5, 6, 7, and 8)
[4] Then pick 2-random colors to paint it with. (no same colors)
Here is how it looks in BlitzMAX. Since the screen is a little over 1200 pixels across, you can get some nice detail, including a single pixel separation per bigger pixel to make it stand out better.

But ... back to the resolution of 128x128 w 16-colors - Press (Z) to draw a new set.
Found a sprite you like ? Work it into a game and let me know ! :)