What are polka dots?

What do you think polka dots are? I like to think they are lots smiley faces. Or a group of planets. Or a circle party. Or bubbles in bubble tea. Other people online don't have the same vision for polka dots. Do a google search for "What are polka dots?," and you'll get these answers:

Polka dot is a pattern consisting of dots.
-- chacha

1. One of a number of dots or round spots forming a pattern, as on cloth.
2. A pattern or fabric with such dots.
-- thefreedictionary

round, evenly spaced dots of uniform size
-- Funk's _2107 Curious Word Origins, Sayings, & Expressions_, p. 929

round, evenly spaced dots of identical size
-- Martha Stewart

Polka dots are a pattern, either regular or random, of circles, or dots, that may be different sizes or all uniform in size.
-- wisegeek

They all answer about a visual description of them. But what about an interpretative description? Polka dots can be lots of things. They can be the white candy things on top of Sno-Caps. The holes of a speaker cap. A bunch of poker chips. A group of rolled-up hedgehogs.

What do you think polka dots are?