Looking for an arcane/planar ritual design

[not_me]

Hey all,

In an adventure I'll be running the big bads are planning some nasty planar mojo by building several temples that feature arcane designs in a special material embedded in the temple floor. What I'm looking for are those designs, something larger and more 'random' than the typical summoning circle or simple rune, but a pattern of patterns. Anyone have any good archives/resources to find such a thing? I am drawing some up, but they haven't gelled for me yet, they're still looking too much like a haphazard collection of lines...

Thanks!

not_me

 

[Shemeska]

What I did in one of my campaigns was to have an archfiend construct a massive warding by the following: painting the interior of a hollow tower with a mural of swirling patterns that formed arcane words, all of them penned using the spattered blood and entrails of a dozen butchered githyanki. Looking closer, each of the larger patterns was composed of smaller words flowing in the same style, and each of them likewise composed of smaller words. Three layers of text, each artistically arranged to form the next, larger piece of text, all of them written in slowly putrifying entrails, the largest of the text forming bizarre poetry.