how?

there is a cup of merc with sprk running through it, some metl with sprk running through it, and pscn with sprk running through it. all of this is happening at the same time. how can i use lua to transform the sprks with different ctypes back to there original type.

constraints:
-way too hard to stop the sprk and then replace the missing element where the it was removed
-there is a whole lot of sprk loops that can only be stopped with lua i assume
-there are possibly more elements with sprk running through them and everything is meshed together

I NEED HELP WITH THIS EVERYONE!!

thanks