Shaving Foam is a brilliant resource to use and relatively cheap too. Although Adam isn't a fan of touching the shaving foam he will do if cars are involved. We created a Shaving Foam Car Tracks Tuff Spot to explore the shaving foam and paints.
Our Bird Nest Tuff Spot is lovely idea for an Easter or Spring themed tray. We've used bird seed to cover the bottom which was very cheap and means we now have lots leftover to feed the real birds out in the garden with.