These are some banners I've made in GIMP. You can use them if you like, but please make sure to give credit! =)
I'm in the process of remaking some old banners, so that's why there's only one here so far; the rest are being redone.
These are the old banners; I'm in the process of redoing some of them, perhaps, so expect those someday! But for now, you can look at the older ones here. Again, if you want to use them go ahead, just please remember to give credit! Though if I were you, I'd stick to using the newer, prettier ones =P