Huh, first fun crack at time turner/travel manufacture that didn't involve ground-up fairies.
Author's response
Did somebody seriously use that?!
Actually, maybe I should use that for something else. I am not above making jokes about other fanfic tropes...
EDIT, 8/12/11: I want you to know that I have been carefully saving your ground-up fairies until it was reasonable to work them in somehow. I took a while, but I did not forget. :)