There are a lot of symbolic meanings associated with anchor, an iconic maritime symbol. An anchor is usually used to moor a vessel to the sea bottom, which reminds people that anchor is symbolic of stability, safety and hope.
Polka dot is a pattern consisting of an array of filled circles. They are most commonly seen on children's clothing, toys, and furniture, but they appear in a wide array of contexts. A polka dot pattern fits any child or adult's personal style.