Three silks are displayed: two black silks and one yellow silk.
 
The yellow silk is clearly positioned at one end, with a black silk in the middle and another black silk at the opposite end.  With a gentle pull, the silks magically rearrange themselves. The yellow silk visibly travels and appears in the center between the two black silks.
 
CONDITION NOTES:  Instructions are included.  There is some minor wear to the silks, along with a small tear in one section. This does not affect the working of the trick at present, though it may require care during handling to prevent further wear. With a bit of simple arts and crafts effort, the silks could easily be replaced or customized, making this a flexible piece with plenty of creative potential.