Easy. Put a little syrup on them and gave them a week or so to adjust to their new surroundings. One of the colonies sucked down the syrup, brought in pollen and some late nectar, filled the bottom boxes solid and swarmed in late September. The resulting late swarm queen never got mated and I combined a nuc with a Carni queen to save the hive.
Caught the other hive in time and will split that colony into some top bar hives next spring. I'll have those hives at home where I can baby them just for fun but as I expand the colonies in a new yard next spring, I don't expect to have enough time to spend babying bees so prone to swarming. I'll raise Carni queens for those. (I won't tell your friend.)