The activity is quite simple, so even toddlers can get in on the fun! All you need for this one is some foamy white shaving cream, a container to spray it in, some food colouring, a couple of q-tips or straws, and some white paper to make your art print on when you're finished.
Start by spraying some shaving cream into the container, you don't need a lot, just enough to make sure that you have a full coating of your tray. Once you've sprayed the shaving cream, you can smooth it out just using your hands so you're starting with a flattened surface.
Add a few drops of food colouring to the shaving cream, making sure to add 2-3 drops to each spot so you have a good little bit of colour there.
Once the colour is on the shaving cream you can start making the master piece! Use the q-tip or straw to swirl the colours around the shaving cream making all kinds of cool tie-dyed patterns. It's ok if the littles get their hands in there too--it's just shaving cream so it washes off pretty easily, although they might have some colouring left on their hands.
This will transfer the colour from the food colouring onto the paper. If you rub the paper lightly down into the shaving cream you should get the colour to transfer without having too much of the shaving cream stick to the paper.
Once you have your print simply set the sheets aside to dry and tidy up! The extra shaving cream that stuck to the paper will absorb in to the paper as you let it dry.
Once your papers are dry you can do anything you like with them! You could write a message right on to the picture, or cut out a tie-dyed hand print or heart to use in a card. The possibilities are endless! Make sure you snap a few photos of the process too so Dad can see his little having fun playing with the shaving cream.