Squashes with no fruit

Sorry Kirpi, can't help myself!    I hope you REALLY like the taste of pumpkin.  Apparently it has a multitude of uses and I'm sure you'll give us a link to your new book when you've written it. 

Actually, would probably have done the same if I had room for pumpkins and you're probably not the first....

Got my first Uchiki Kuri to try this year but it is only a wee thing.  Not much of a meal there I'm afraid but looking forward to it. 

Can't stop thinking about what you're going to do with it all but I'm sure some suggestions will come along later so thanks for making me smile. 

Wow, thanks everyone! There's a lot of info here.

I went along last night, and although it was quite dark I think I saw one female flower quite close to the stem of one plant. I can go along armed with a paint brush tonight. How long do the fruits take to ripen (length of a piece of string?). I'm guessing it's not like courgette where I'll be picking it in under a week. Given that it's late in the year should I trim back the plant and force it to ripen a bit?

Quite apart from the temps, I think this year there has been a problem with pollination on a lot of crops. There was just so much rain for so long that for fairly long periods there weren't any insects around to do the pollinating. Even before the blight hit my outdoor tomatoes, there were hardly any fruit on them although the plants themselves looked very strong and healthy. In previous years I've grown the same varieties and had huge crops from them.

I am growing various courgettes including tricolor round courgettes which have all been prolific. 

I had two Mars pumpkins - both of which produced one pumpkin each but one of the plants died off with downy mildew and I had to remove a decent sized pumpkin which now languishes in cold storage. 

I have a patty pan that has produced six fruits, two hundred weight pumpkins - one fruit is approximately 1 foot diameter at the moment.  I also grew a celebration winter squash which has produced 8 fruits which are growing well.  The butternut squash has done nothing!