I found the lovely Mr. Baryi Pumpkin buns here (in japanese).
Some of you may be do not know 'Mr. Baryi' or Barysan.
Mr. Baryi is a baby chicken mascot, from Imabari city,
Ehime Prefecture who win the Japan Mascot Grand Prix 2012.
This chick-like character of indeterminate gender wears a crown
intended to symbolize the nearby Kurushima-Kaikyō Bridge and
has a fine Imabari towel wrapped around its waist.
Barysan is described as being kind, yet sometimes overly enthusiastic
when it comes to extolling the virtues of its home.
Talk of a pleasant disposition, however, is undermined somewhat by
Barysan’s cannibalistic tendencies (a favorite dish is local specialty
yakitori), and signature baryattack, which has been used on TV to
upend rival mascot Kumamon, along with various other human celebrities.
The step by step photos how to cook these lovely buns are available by Junko.
Let's see all detail there.
Who can't read Japanese like me, the google translation page can help.
Have a nice day.