Thanks everyone - lots of ideas there.
Yes Sally, I have tried apricot in combination with north african spices and it was good. I will need to experiment more to get the spices just right.
Macgro7, I like garlic but not for an entire batch of sausages. I might put a little in the mix as it always adds fullness to the flavour. Pepper yes, salt no! The last batch the butcher used a wider gut for stuffing, not so fat as big pork sausages, but better than the skinny ones, less hard.
I hadn't heard of chevapcici pgkevet so I watched a youtube clip - so much salt!! I do like the idea of lime, I think it would cut the fat, although Heb Hogget is not fat but there is always a taste of it. The butcher did once add spring onion to the mix as he had some for sale, and that was good.
PipKelpy I use my home grown chillies, not mind blowingly hot but fine for us and flavoursome, but I can't take sugar in anything, so I stick with savoury flavours. I used to love sweet and sour, but even that is out now. I would never have thought of cheese!! I agree totally about adding mint. I had some added to a batch a while ago - a huge amount of home-grown and chopped mint sauce mint, but when it was added to the sausages, the flavour had gone, so disappointing. Much better to keep it for the gravy or mint sauce I think. Wholegrain mustard I will definitely try too.
This year the butcher will have to make a single batch of sausages, all the same flavour. We are about to start, tomorrow, having our kitchen stripped out and rebuilt. It will take about 5 or 6 weeks, so I will have no opportunity to experiment, without a kitchen. However, I thought that rather than also getting burgers, I would have half the mix as mince. Then over the next year I can play around with that, making burgers, meat balls etc, and try out the various flavours. Shepherds pie with a kick too. The batch next week will be mainly chilli and plenty of black pepper with herbes de provence and maybe a hint of garlic. They have been popular in the past, and I know the butcher is confident with quantities for those. Then next year I will have my big working kitchen and I can get out the big sausage stuffer and make my own, with batches of various flavours. There will only be two meat lambs next year, so making sausages from them won't be too much to get through.
So thank you everyone, between you you have given me lots of ideas, some new ones I wouldn't have thought of.