Neumeister, from Germany, sells on 6 July 2016 a "Parable of the Wedding banquet" by Simon de Vos and the Francken Workshop, estimated at 8,000 to 10,000 Euro.
So, what does one have to do? Change Christ to some king, and change the people in the garden to a man being dropped in a well. Add or remove some details at random, and you have a new painting with a new subject!
The one for sale now is in a worse condition than the Van Ham example. It is in parts by a different hand, but it's hard to tell which one is better.