Puppet Theatre, £54
Roll up, Roll up.  This has been rigorously consumer tested and is certified to keep a room full of rugrats spellbound for - oooh, 20 minutes or so.  You may have to customise a few socks before the big show though.

Magnetic Play Picture, £16.50
Sometimes the simplest toys keep Children Spellbound for the longest.  On one side there's an underwater scene.  On the other there's a farmyard.

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