In haste, I used a GIMP script fu to create the SacLUG log for the current site. Some have blessed it because it reminds them of a logo for the year 2000. Others have cursed it for the same reason. I admit the logo is a bit ridiculous.
I just hopped over the GIMP tutorials and I found a page for creating simple floating logo. https://www.gimp.org/tutorials/Floating_Logo/
Brian