This is definitely a chance to use the colour blue - in any of its shades, though indigo comes first to mind, followed in the stream of conscious by the boro mended items that are now so popular.
But what does the phrase actually mean? Some definitions -
Blue-sky thinking involves a group of people looking at an opportunity with fresh eyes.
and
Blue sky thinking refers to brainstorming with no limits. With this approach to idea generation, ideas don't need to be grounded in reality.
No limits, no judgments, no consequences.
Or ... you could be literal and, if there happens to be a cloud around in the blue sky we've been treated to for the past few days, you could use it as a starting point for something extra-ordinary...
Nancy Holt's "Sun Tunnels" come to mind - a way of looking at the (blue; sunny...) sky. And James Turrell's Skyspaces - "specifically proportioned chambers with an aperture in the ceiling open to the sky". .
Another way of looking at the sky - or rather, of bringing it, or anything under it, indoors - is with a camera obscura. Chris Drury has made some stone "huts" with a hole in the roof, so that the stars can be seen in a dish of water on the floor - https://chrisdrury.co.uk/category/works_outside/cloud_chambers/ He calls them cloud chambers; my favourite is the wave chamber beside Kielder Water, in which mirrors bring the waves indoors. Or rather, the light (and sky) reflected from the waves. https://chrisdrury.co.uk/wave-chamber/ shows how it works
Ah yes, the sky's the limit!
From Joyce - I just started with black lines drawn with a twig and then harmonious colours painted followed by other marks , just playing and seeing where it goes. Inspired by evakalien on Instagram
From Ann - A photo that I took a few years ago whilst on holiday in New Mexico. It's an area called White Sands in the Tularosa Basin and is quite a beautiful place despite the fact that it's surrounded by a missile range!
The brightness of the sky, the children playing and the cool white duney sands always give me a blue sky feeling!
From Gill - Well,…. I thought of a blue sky.
From Sue K - Here’s my take on this. It’s actually a blue shadow of fatsia leaves on a white wall - it’s rather like sky & clouds in reverse.
From Carol - Some blue sky thinking about my seedlings:-
a) Hopeful that they will not be eaten by snails (like the last batch)
b) Anticipating lots of healthy soups and smoothies from them
c) Positive that my husband will finish the promised raised veg bed for them (anyone’s guess).
From Janet K - A sky blue thought.
From Mags - A Blue Sky Thinking Cap. Motivational phrases using inks and Posca Pens on used Colour Catchers.
From Judith - Too hot for ‘Blue sky thinking’ today so a very literal response!
From Sue B - a watercolour of Camber Sands , from a photo sent to me , which I did last year
From me - On a blue-sky morning the sun shone through a tree and through old windowglass onto my book lying open on the table. I drew around the bright bits with a felt pen, then got out the watercolours and tried the various shades of blue. The paper was flimsy and buckled like billy-o, but settled down again when it dried.
Next day, same process, except that one of the pen was a bit watersoluble, and instead of paints I used inktense pencils.
Instead of a clear blue sky, a changing sky is reflected on somewhat turbulent water.
Both are on the same page - the calmer, clearer sky above, the murky flood below.
