Step 1: Order Chirashi Sushi. Have them replace ika (squid), tako (octopus) and saba (mackerel) with sake (salmon) and kajiki (blue marlin).
Step 2: Disassemble sashimi and rice.
Step 3: Reassemble in tummy.
Thanks to Chuvaness, I am now obsessed with these toys made by a company named Konapun.
According to the YouTube channel I linked these from:
And in conclusion, the Japanese are awesome.