Here is what I use to put my Queen Cells in when I want them to emerge in the incubator.
I use the Nicot Queen Cage and Cell cup holder mount.
The cap on the queen cage has a round indentation that will slip onto the brown nicot mount.
The other end of the cage is open so you can use a jzbz cell protector or just slip a jzbz with queen cell into the open end of the queen cage.
This setup will hold 30 queen cages.
The second picture is the cap on the Nicot Queen Cage.