Note to self...test my bullet proof vest with a watermelon or pumpkin...
Do you mean start with a watermelon and work your way up to a bullet?
Paul Harrell tests 3A Body Armor vs. 5.56 Nato and 7.62 x 39
(photo above is from testing his "meat target" against pistols. IMHO, the guy is good but a little 'loquacious' so you may want to ride the speed button watching his videos).