I have these two little daughters called H*** and M***. They are small and very funny. Like Lola, they absolutely must do colouring-in now.
I gave them each one of these excellent books when we went on holiday this summer and they were kept occupied for a full two weeks! There is plenty of opportunity for colouring in, but more importantly it stretches the imagination by getting them to complete the pictures ("What is Charlie standing on?" "What are they looking at out of the window?"), to draw on facial expressions, and to use collage.
I loved this book so much, we gave it as going home presents at my oldest daughter's 6th birthday party, so now the whole class is doing it too.
Strangely, Amazon is still advertising it at £3.99 which might strike you as steep for a book with no stickers, flaps or any other gimmicks. The printed price on the book is in fact £2.99 so beware if purchasing through Amazon.