It's been a while since I last tried this. First, a bit of history...
Did you ever wonder where the first 8th circle scrolls came from? They didn't spawn on monsters when the shards were first created, and a scribe can't make them without having the scroll in their pack...
That's where us lockpickers come in. Static chests spawn 8th circle scrolls. Now, I wasn't around when the shards first opened, but I can let you in on a little secret (providing they still work in the same way as they did about 4 years ago)...
If you unlock a static chest, then untrap all of its traps (you can cast telekinesis on them 3 times for example), poison, explosion and magic arrow, it will relock after a while. When you unlock it again, and untrap it again, it can contain random bits of non magical armor/weapons, spell scrolls (including 8th circle spell scrolls), body parts, bones and the different variations of "bones" containers...
Now, as I said, it's been a while since I last tried this, but I'll make an effort and see if it still works, will let you know here...