I recently took a moment to update the party links on my sidebar (scan to your right just a teensy bit and you'll see them) into one tidy, concise post with images. Hopefully you'll find some inspiration that will help you plan a fun party on your end.
BIRTHDAY PARTY THEMES
April Showers Bring May Flowers
Hot Air Balloon
Cherry (could also be a cute twin baby shower idea)
* more ideas about planning parties around cute, current postage stamps.
For Marin: inspired by strawberry, chartreuse and teal Japanese paper
For Katie: diaper pin drinks and individual trays
For Amber & Chris: a couples baby shower (heavy emphasis on food, rather than decorations, at this party)
image of Trophy Cupcake's new party space in Wallingford - taken by Stephanie Brubaker for stephmodo