i made Doraemon's Ice Roll Cake using leftover of chocolate eggs;)
most of chocolate eggs are from JSC(https://www.youtube.com/user/japanesestuffchannel)
of course,we can use other chocolate instead of chocolate eggs!
i made Pikachu's surprise egg chocolate roll cake before,so,which fo you like?;)

ingredients

doraemon face
20g butter(at RT)
20g powder sugar
20g egg white(at RT)
3g flour and 2g cocoa powder(sifted)
15g flour(sifted)
food color blue

roll cake
2 eggs
60g granulated sugar
60g sifted flour
1tbsp milk(at RT)
vanilla oil

chocolate whip cream
200ml fresh cream
about 75g chocolate eggs

related videos
Pikachu Surprise Egg Chocolate Swiss Roll Cake Recipe
https://youtu.be/1Tv7Yerk824

Doraemon Surprise Egg Chocolate Egg Plus
https://youtu.be/74Hn260kUeM