I knew that I couldn't have been the only one to think 'Stargate' when LEGO Pharaoh's Quest came out. Outside of JasBrick's custom minifigures, however, I hadn't seen much done.
Eurobricks member Yatkuu has answered the call with this MOC depicting the villains transporting in. Great use of lighting and the build captures the action the 'transporter rings' quite well. You can see more of this MOC on Eurobricks.