Iron Bird has set of Thynian disks available for purchase. Thse disks are pieces of obsidian with metal inscriptions. Some of them have only diagrams or pictures, while others have strange and unknown lettering in them.
Works really nicely as a decoration in forgotten ruins or in a laboratory of adventuring archeologist. Since they are copyable and modifiable, you can have as many of them as you want, in different sizes.
Disks are available separately and as a pack of seven (with small discount).
In-World:
http://slurl.com/secondlife/Blorkus/251/176/111
Single pieces at Xstreet SL:
https://www.xstreetsl.com/modules.php?name=Marketplace&file=item&ItemID=1345778
https://www.xstreetsl.com/modules.php?name=Marketplace&file=item&ItemID=1345780
https://www.xstreetsl.com/modules.php?name=Marketplace&file=item&ItemID=1345782
https://www.xstreetsl.com/modules.php?name=Marketplace&file=item&ItemID=1345784
https://www.xstreetsl.com/modules.php?name=Marketplace&file=item&ItemID=1345787
https://www.xstreetsl.com/modules.php?name=Marketplace&file=item&ItemID=1345789
https://www.xstreetsl.com/modules.php?name=Marketplace&file=item&ItemID=1345792
Pack of seven at Xstreet SL:
https://www.xstreetsl.com/modules.php?name=Marketplace&file=item&ItemID=1345794