Spongebob has to be the world's most famous ukulele player, so it was only a matter of time before he got his own ukulele. As you might expect, this isn't a high quality instrument. But it is a great way to get kids into playing music. So I'm all for it.
SpongeBob SquarePants Ukulele Review
On eBay UK
SPONGEBOB Guitar and Ukulele