I almost always have fun birthday parties on the brain, and Cookie Monster party ideas are everywhere!

After searching through a lot of different decorations and treats for Cookie Monster party ideas, I had a realization. A bunch of different royal blue items are all you really need to really communicate a fun party atmosphere! If you add some fluff and googly eyes, you're well on your way to a great Cookie Monster party!

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Here are amazing Cookie Monster party ideas to have a DIY Cookie Monster birthday party!

Cookie Monster Party Ideas:

 
This Cookie Monster centerpiece is made from a Chinese takeout container, ribbon, lollipop sticks, and printed images.

Cookie Monster balloons that start with plain royal blue balloons are easy and adorable!

This DIY Cookie Monster pull-string pinata is easy to make and fun for little hands to work on!

These Cookie Monster sock puppets would be a great favor or activity (with an adult helper for the glue gun work)!

Any party favor (or take-home treats) should definitely leave the party in a simple royal blue bag.

Bakerella's Cookie Monster Cupcake Pops are to-die-for cute, and perfect for a party with lots of different treats!

I love that these Cookie Monster cookies are eating more cookies!

Furry-looking Cookie Monster cupcakes are a perfect fit for this party!

Blue candy in glass vases and apothecary jars tie perfectly into the Cookie Monster theme!

These DIY Cookie Monster Cups that start with royal blue paper cups are easy and super-fun!

Royal blue plates, napkins and cutlery are all you need to round out the theme.

Do you have any other Cookie Monster party ideas? I'd love to read about them in the comments below!