Title says it all, create an item by merging two items. You can also list effects said item would have.
Example:
Ai-Li's Skymirror
+
Potions of Illusion
=
Skymirror of Illusion (Once used everybody around you takes on your appearance (for a limited duration of course, and only on your screen (May also be reserved for players only not guards)))
Any items in particular you guys would merge that'd have a cool name/effect? Points for names and uniqueness. Also try not to make something too overpowered as that's no fun!