You can easily get these nori punches from CasaBento or other bento suppliers in Amazon or Ebay.
The two little chicks are also quail eggs. They look quite worried as they know that they will be gobbled down by the two little bears quite soon. Fortunately for the bears, they don't know that they'll be gobbled down by me soon after I finish writing down this post, that's why they're still smiling ;).
Have a great week ahead everyone!