The best thing about this day and age with technology and the world at your fingertips is that inspiration is everywhere. Any theme you pick can be expanded into a party extravaganza...
Recently I had a client that said:" ... My nephew is having a donald duck party ... and we were looking to see if you can make 30 donald duck biscuits... He's chosen such a terrible theme and we are battling to come up with ideas :) "
But it needed be a terrible theme. Think lateral. Donald is a duck and a sailor...so use nautical elements as well.
Duck = water: bags/containers with popcorn/cheesy fish biscuits as duck feed, blue jelly as water, mini sugar cones as duck beaks, splash pool with rubber duckies as personal gifts
Donald Duck: Blue and white with a hint of yellow and red. Blue/white plates, napkins, cups, bunting, balloons etc. Bring the theme in by using the colours that Donald Duck represents.
Here are a few ideas:
These are the cookies I made for them.
Inspiration from Pinterest:
Donald Duck cut out - great template for masks and decor elements
Donald Duck outfit for mom/girls - can do the same for boys by using a blue t-shirt and red bow tie with the yellow sneakers and white shorts