Well I started with an ultrasonic toothbrush to vibrate the pollen into a bowl but later just started taking each branch and banging it into the metal bowl. Than I would scoop up all the pollen and put it through a pollen shaker to removed any vegetation. Than into a sealed Tupperware with gasket and a portable dehumidifier sealed in with it to remove moisture. I kept it that way and in the cool dark basement closet and it stayed viable for some time. I shipped it for weeks and weeks because I did 2 rounds of signups for it. Most people came back with positive results.