I've been trying not to use so many adjectives and adverbs, and instead try to give exact descriptions of things by showing and comparing. I've been getting stuck on showing the size of objects. I keep doing things like comparing objects to my own finger or forearms lengths, but I know that's stupid since no one knows what I look like. I also think of things such as animals or other items that have different sizes.

What all do you use to get an imaginative boost to describing sizes?

(This is also my first post here so hello and I apologise if I've done anything wrong)