One of the fun activities I like to do at kids parties is set up a mini photo booth station. This is a good activity whilst kids are arriving as you get to know who they are one-on-one, it breaks the ice and they have a cute party memento to take home. (Trying to take one-on-one photos later on never seems to work as they are all running around having fun!).
For a simply set up: I stuck some Meri Meri posters on the wall, set alongside a giant IKEA cacti plant and a rustic towel wooden ladder I bought for one of our bathrooms. I then found cute little paper cacti cut outs on sticks from Manor and used our No Probllama flag as props. The kids then got to take photos with a mini Fuji Instax, so that way they could immediately have their photo to take home!