Some members had never marked a queen so they practiced on worker bees.
For a few queen cells a more than adequate swarm box is a nuc with a feeder and 3 frames of honey and pollen(no brood!!). Only 3 frames because you must leave a space for the cell bar. Then shake in more bees than you think it will hold.
This is an example of a good pollen frame, again you must assure there is no brood or they will start emergency cells on the frame itself.
A decent example of a grafting frame. The key is to graft the smallest (youngest) larvae possible. The easiest way to do this is by finding eggs and graft from the cells with royal jelly closest to them. The larvae should be extremely hard to see, if they are easy to see they are likely to large. The strip of cells in the lower right corner is just about right.
Both a traditional and a Chinese grafting tool were demonstrated. The Chinese I find much easier for beginners, but they are not very durable so always buy several.
This was a practice larvae on a Chinese grafting tool. This one is actually too large, so that gives you an idea of what your looking for.
The fruits of our labors. A cell bar with 18 grafted cell cups was placed in our swarm box and 14 of them were made into queens. Not bad for beginners!!
And as a bonus for braving the heat a few members came by the next week and picked up ripe cells for Fall splits.
All in all a successful day.