Yes, I did that just recently. But it was a bottle of beer with a *lot* of sediment and a very aggressive ale yeast that I wanted to try. I added the dregs from a 500ml bottle to a half gallon of apple juice, then stepped it up to a gallon once it was fermenting good, then poured all that into another 3 gallons of juice for 4 gallons total.
The yeast I normally use for cider is so cheap it's not worth that effort.
An easier way to recycle the yeast is when you bottle a batch, pour fresh juice on the lees left behind in the fermenter to start the next batch. That should be a big overpitch which is okay.