Lots of fantastic Dr. Seuss ideas at
Animal Circus Themed First Birthday Party - Inspired by This (Party Top Carnival Themes)
Boy-Girl Twins Birthday Party Ideas by Double the Fun Parties- **Pirate vs Mermaids
The Very Hungry Caterpillar / Birthday "Matthew's Birthday"
Pirates Themed Birthday Party with So Many Really Cute Ideas via Kara's Party Ideas
Creative & Crafty Cat in the Hat Birthday Party // Hostess with the Mostess®
Pirate & Mermaid - Under the Sea / Birthday "Ethan & Sophia's Pirate & Mermaid…
What an adorable inventive way to celebrate boy girl, brother sister, twins birthday party!