This is an Australian-made pollen collector called a Shake'n'Make....it is basically a (recycled) plastic mug with lids top & bottom & a silk screen positioned above the bottom lid....
You could make 1 similar very cheaply with some PVC pipe with end caps....I have seen a monster made from 4" pipe that was nearly 3 feet long & could shake about 5 oz. at a time....

:hippy:
Slayer