It's about 65,000 times as heavy as a Nail
It's about 45,000 times as heavy as a Jelly Bean
In other words, the weight of a Jelly Bean is 0.0000220 times 50 kilograms.(for Jelly Belly beans; approximate)
Made of sugar, corn syrup, and pectin, a single jelly bean weighs about 0.0011 kilograms. President Ronald Reagan cited jelly beans as his favorite candy and 3,200 kilograms of the candies were served at his first inauguration in 1981.
It's about 35,000 times as heavy as a Paper Clip
In other words, the weight of a Paper Clip is 0.0000280 times 50 kilograms.(average)
Notwithstanding the tremendous variation in sizes and materials, a typical paperclip weighs about 0.0014 kilograms. The country of Norway has used the paper clip as something of a national symbol since the end of World War II based on the erroneous notion that the paperclip was invented by a Norwegian, Johan Vaaler. However, the paperclip had already been in existence for at least 30 years by the time of Vaaler patented his paperclip design.
It's about 30,000 times as heavy as a Playing Card
In other words, 50 kilograms is 28,000 times the weight of a Playing Card, and the weight of a Playing Card is 0.0000360 times that amount.(ISO 216 B8 size, 2.5" x 3.5")
A single ISO 216 B8-size playing card weighs 0.0018 kilograms. Although this size is the most common home playing card, many casinos use "bridge size" cards — 2,640 sq. mm (4.036 sq. in) smaller in area.
It's about 20,000 times as heavy as a Penny
In other words, the weight of a Penny is 0.0000500 times 50 kilograms.(United States) (formally one-cent coin) (Union shield design, 2010-present)
The weight of a United States penny is 0.0025 kilograms. According to a 2010 report by the United States Mint, the cost of manufacturing and distributing a penny is $0.0179 — more than its face-value.
It's about 10,000 times as heavy as a Die (Dice)
In other words, 50 kilograms is 12,000 times the weight of a Die (Dice), and the weight of a Die (Dice) is 0.0000830 times that amount.(for six-sided, 16 mm, rounded cube)
A die, of the size most commonly used in board games and casinos, typically weight 0.0041 kilograms. The use of dice and dice-like tools predates written history, with the oldest known examples belonging to a 5,000-year old backgammon set uncovered during an archaeological dig in modern-day Iran.
It's about 10,000 times as heavy as a sheet of Paper
In other words, the weight of a sheet of Paper is 0.0001 times 50 kilograms.(for US Letter, a.k.a. ANSI A; 215.9mm by 279.4mm (8.5 in x 11 in); 20lb)
The weight of a ream (500 sheets) of 9.10 kilograms, 8.5 inch x 11 inch paper is 2 kg, each sheet weighing 0.005 kilograms. Paper of this size has a thickness of 0.004 caliper (0.1 mm).