I just found a lovely one hour coding tutorial where you learn how to get Anna and Elsa to skate in a snowflake pattern. I’d say it was suitable for a bright 6 year old with supervision, I’m going to try it with My 5year old but think she’ll get bored after the first few screens, I’ll let you know how it goes!
Try it on your computer at https://code.org/learn
There are other games apps and ideas on the site, I think the unplugged activities will be easier with younger children. I’m hoping I can get babis 1 and 2 to programme each other!