create a bunch of circles or squares in GIMP or Photoshop? Sorry, there wasn't enough room in the question box for all that.

I'm looking to make LED-style lights in my car, but I want to know, first, if there's an easier way to draw a bunch of tiny square boxes than to, one by one, draw a bunch of tiny square boxes

If there's an option or algorithm or something...if not, I'll just toil away, but I figured it couldn't hurt to ask. Thanks in advance.
