I'm generally don't go ga-ga over neutral colors for babies. It also drives BA-nanas when friends and family don't want to share the sex of the baby (unless they don't want to know themselves). It can really make the gift giving process much harder and not as fun. Yellow and green are just not really that exciting.

But, while browsing good ol' Etsy, I spotted this hip monkey themed set of party invites, napkin rings, cupcake toppers, goodie bags (empty I assume) and address labels. This birthday party set has nailed the natural color scheme. Adorable, customizable and a fun find for your little monkey's party! $49 @ PartiesInBloom.Etsy.Com