We have in our house, bought by lovely MIL but fully condoned by me, a cloth bag in the shape of the inimitable Spongebob Squarepants. I like Spongebob - it is whimsical, slightly bonkers and funny, but the characters are positive and the relationships between them are warm and supportive. It contains ten books, each based on an episode of the television show. It hangs on the back of the door, and occasionally makes an appearance when the door stop comes out of the way, and the children remember that they own it.
Today, despite my snobbish regard for tv-tie-in books as a sub-species of "proper" books written for children, I have been deeply glad that we own them. Both children have spent several hours today poring over them and laughing at the storylines and pictures. They are relatively easy reads, helped along by the fact that C already knows the storylines, so he can guess at tricky words, so neither child required parental involvement in reading them.
What price peace and quiet on a Sunday afternoon? £9.99 for a 10 pack from the Book People. Bargain.