The beautifully illustrated stories of Peter Rabbit make a lovely party theme for young children and plenty of craft ideas.
Peter Rabbit party

The beautifully illustrated stories of Peter Rabbit make a lovely party theme for young children and plenty of craft ideas.
A rainbow party is a lovely bright birthday party theme that could work well for 2-4 year olds.
If you’ve a little dinosaur fan it makes for a lovely arts and crafts birthday party theme.