Craft Epic Rod( Epic Level Handbook, p. 52)
[Epic, Item Creation]
You can craft magic rods of epic power.
You can craft rods that exceed the normal limits for such items (as stated in this book and in the DUNGEON MASTER's Guide). For instance, you could craft a rod with an enhancement bonus greater than +5 or a rod with prerequisite spells of higher than 9th level. See Chapter 4: Epic Magic Items for examples of epic rods.