I saw this at the store yesterday and couldn't resist purchasing him. I tossed him in my bathtub last night and this morning I checked to see how much he'd grown ... not bad, he's expanded by a few inches. The package stated it will take 72 hours for him to grow to maximum size, so I'll have to take a few more pictures to document his growth spurts. You're welcome.
In case you're wondering, his name is Graffiti. I don't know why, it just made me laugh.
Now you're jealous you don't have an octopus in your tub ... admit it.