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Many of the logos for this site have been appropriated over the years as both commercial and free clip art. Sometimes they even cut out our URL or any other trace of a signature by the artist (video example). This situation then flips into the tragic implication that we slapped our URL on someone else's art.
The following images are often used elsewhere but were actually created by dimitri exclusively for deoxy.org:
The Original
Derived from a famous painting of King Tut.
Hyperspace
Started from a clip art eye.
Updates 
Initially a photo of King Tut's mask.
Chemical Experiences of a Hyperspatial Nature
Original designs inspired by the DMT experience.
The deoxy hieroglyph.
This symbol literally means "deoxy.org".
Omega, the old version
Created on my Amiga.
TerenceMcKennaLand
Assembled from well-known pictures of Terence McKenna.
On the other hand deoxy contains plenty of unattributed images...
Thanks for listening.