Wearing oven mitts, gently shake the container again to check and see if the bismuth is becoming solid. (This should appear to look like very little rippling when the container is shaken.)
Quickly pour the liquid bismuth into the first container that was used. There should be bismuth crystals in the second container.
The bismuth crystals can be snapped out of the container after the bismuth is completely solid, or they whole shape can be saved. Crystals should form in the other container as well.
If the crystals are not to your liking, the bismuth can be remelted and the process can be repeated until the desired crystals are made.