Professor Layton will soon appear in Boston and Seattle. If you find him, you'll win a prize.
I tried and failed to find out more information about what happens when you do find him - - is it someone dressed as the professor? But I did find this Professor Layton cosplay:
And this Diabolical Box:
You can read about it and see its contents here.
Also, plush Professor Layton, Doraemon dressed as Professor Lyaton, and Professor Layton fan art. Via.
*Previously: Professor Layton vinyl toys.
*Buy Doraemon toys at eBay.