They look pretty good but I think are copying Mister Donut.
Mister Donut was the competitor to Dunkin Donuts, started by the brother-in-law of the creator of Dunkin Donuts and eventually became the #2 donut place behind Dunkin Donuts.
Eventually there was a bunch of franchise stuff and rights-selling to various parent companies and Mister Donut became big in Japan, Taiwan, and some other countries but are basically gone from the US now. Those mochi donuts are pretty popular and their mascot character is like a lion where the donut is the mane.
[TRAVELOG Japon #15] Pon de Lion Park by Mister Donut Tokyo Solamachi shop