I had so much fun last year preparing my sons 8 years birthday party. Two basic colors: yellow and blue and the funniest cartoons characters The Minions!
I found via Pinterest a lot of DIY ideas for decorations and activities. Printables are my favorites and I always have self-adhesive paper, that makes it easy to print and stick to any surface. In this case I printed on self-adhesive paper Minions eyes to decorate the drinking cups and cardboard paper for the Minions goggles.
For entertainment we had games like running with a spoon, target shooting and Minions bowling. I made the pines from plastic bottles that I painted blue and yellow and self-adhesive Minions faces.
My boys are not into conventional birthday cakes. So we put together a candy table with snacks, norwegian buns, Minions cupcakes and cotton candy.
Our cotton candy machine is from Clas Ohlson. Very fun to make and to eat.