Avoiding Shaken Bee Syndrome

Does anyone else out there see the utter impossibility of shaking 15,000 bees through a small hole in the center of a box DOWN into another box without them all just flying UP into your face??? There has to be a gentler way. In my attempt to avoid Shaken Bee Syndrome, I managed to completely botch this bee installation. Learn from me and avoid. Or follow. The choice is yours.