I've ordered some paint to arrive today and have asked DC to go through the craft cupboard - we've got lots of stuff they can paint already - canvas, cardboard letters, etc. They'll do an art thing every day, whether it's a Draw with Rob or a craft project from t'internet.
I've challenged them to pick one toy a day (e.g. Gravitrax, Anki Overdrive, karaoke machine) that they've not played with for a long time and play with it - either separately or together. They've got so much and I regularly despair at how they sit gathering dust while they complain about being bored.
I'm going to look for an online escape room to do at some point this week.
Going to find some YouTube videos of rollercoasters and rides through the mountains etc and make them stand in front of the TV.
When it stops raining I'm going to get them to refill the bird feeders. I've asked them to research different bird boxes - which native birds need the most help in our part of the world and what type of bird box they need and where to put it. Then I will buy it and they can paint it and we'll put it up.
They are both growing things but I'm not sure I'd recommend this as (a) once you've planted the seeds everything goes super slowly and (b) if each sibling has their own plant pot all hell breaks loose when one plant pot full of seeds germinates and the other doesn't...
On that same note they generally get on really well but I think it's healthy for them to do some activities by themselves so some of the above will be done by one, while the other will do something else. Then they'll swap.