Did a cut out recently on a wood duck box. Took the bees a few days for them all to decide to go into the hive. But finally, they are all in and gone from the remains of the duck box. I did find a queen cell left in the duck box, so I opened it and there was a pupa of a queen inside. I am suppose to be doing a bee demonstration for 2nd graders next year, was wondering if there is some way to preserve the pupa in a glass to be able to show the kids?