I'd like to pull a thread from my sweater or a knit bag and have it become a yarn ball- much like the old silk to billiard but scaled down to closup.
On the other side - I'd like to get some laytex stone/pebbles cast to match some identical yet actual rock(like) items.
not that I know which approach will ultimately pan out as the more useful for audiences but it's time to get with the cups trick again.
Alciphron or charmed wool - there's magic to do.
PS - yes - after that comes the magnets, the bottomless cup for the wallnuts moment and the balls restoring into the bag for the final load.
@James Riser: Yes to the Ramsay Metal cups though I suggest adding lids. Please. Sample containers for something special? Been discussing a rattle gimmick on that with folks for a few years. That and the chop feature. Remember, Ramsay was out to fool his peers ;)