Ask HN: Looking for robot toys/kits for young ones

hi, I'm looking for an educational toy for my 11 year old boy and 8 year old girl. They both like coding and have had a go at electronics at some of the maker events we've been to. They both go crackers seeing things spin and lights flash in response to their Scratch and Python programmes, I think I might have a couple of little control freaks in the making - lol.

I've had a look around for programmable robot kits in shops and online and I'm overwhelmed by the choice and levels of complexity.

Is there something anyone can suggest I have a look please?

thanks Lou