Squash ID please

[mothhawk]

I emptied all my old packets of squash (some dating back to 2008 ) onto the garden in the spring to let grow what will, and three grew and have produced fruit. I have narrowed the identification down to a choice of three, bearing in mind shape and size. can anyone narrow it down more?
The choices are Kabocha (I think, it was a seed swap pack just labelled "Jap"), Winter Festival, or seeds from a green and white squash from the supermarket.
They could all be the same, or each different.

[ameno]

They look all the same variety to me.
They are definitely not Kabocha (although if you got the seeds in a swap it's possible they weren't actually true to type, so it could still potentially be those seeds), and the shape isn't at all right for Festival.
I suspect it's your supermarket variety. Based on the shape and colouring, it looks like a variety in the species Cucurbita pepo (which is the same as courgettes and marrows), which does sadly mean their eating qualities will be mediocre.

[mothhawk]

Oh well, I'll bung them in casseroles then. Thanks Ameno.