It's about one-fifth as big as a Tennis Ball
In other words, 0.0009 bushels is 0.20140 times the size of a Tennis Ball, and the size of a Tennis Ball is 4.9650 times that amount.(ITF Standard; for Type 2 ball)
Per International Tennis Federation standard, regulation tennis balls must measure 6.54 cm to 6.86 cm in diameter, for a total volume of 0.004469 bushels. Competition balls are also tested for bounce height, with the standards requiring that a ball dropped from 254 cm must bounce back to a height of 135 cm to 147 cm.
It's about one-fifth as big as a Baseball
In other words, 0.0009 bushels is 0.15075570490 times the size of a Baseball, and the size of a Baseball is 6.6332481460 times that amount.(MLB rules)
Per Major League Baseball rules, a baseball must measure between about 0.005724706715 bushels and 0.006215139944 bushels. A major league pitcher can throw a baseball at up to 150 kph (91 mph) in a fastball pitch.
It's about one-tenth as big as a Baseball (packed)
In other words, 0.0009 bushels is 0.096483651 times the size of a Baseball (packed), and the size of a Baseball (packed) is 10.364450 times that amount.(64% packing density) (MLB rules)
Per Major League Baseball rules, a baseball must measure between about 0.0057247067 bushels and 0.0062151399 bushels. A major league pitcher can throw a fastball at up to 150 kph (91 mph).
It's about one-fifteenth as big as a Blood Donation
It's about one-twentieth as big as a STARBUCKS Venti Coffee
In other words, the size of a STARBUCKS Venti Coffee is 19 times 0.0009 bushels.A STARBUCKS Venti coffee drink measures 0.017 bushels. The name of the size, Venti, is the Italian word for twenty.
It's about one-fiftieth as big as a Human Stomach
It's about one-fiftieth as big as an Ostrich Egg
In other words, 0.0009 bushels is 0.01943 times the size of an Ostrich Egg, and the size of an Ostrich Egg is 51.470 times that amount.(Struthio camelus) (for common ostrich; average)
The largest egg produced by living birds, ostrich eggs measure about 0.0454 bushels in volume. The eggs take about nine weeks to hatch, with males and females taking turns incubating them.