* A grain of salt: A single, small grain of table salt is about 1 milligram.
* A small particle of dust: A tiny speck of dust you might see floating in a sunbeam could be around 1 milligram.
* A single eyelash: A human eyelash is approximately 1 milligram in weight.
* A drop of water: A very small drop of water, about the size of a pinhead, is roughly 1 milligram.
Keep in mind that these are just rough estimates. The actual weight of these items can vary quite a bit.
