I don't think I've got anything particularly unusual in the way of gadgets, except maybe for the dishwasher accessory which I use as a normal funnel.
I have got a large pestle and mortar which my brother brought back from Thailand, which is now an ornament. It's far too big for me to use - I'd have to stand on a box to be able to use it properly, so instead I have two grinders - an old one which I just use for small quantities of spices, and one which is an attachment to my food processor which I use when I fancy making a pound of curry powder etc.
I've got an early 1970s Moulinex Jeannette mincer, shredder and juicer - see picture (courtesy of eBay), but I don't use it very often now because it is difficult to clean. Also all the metal bits in the mincer are iron and go rusty very quickly, unless you wash them, dry them and oil them straightaway. Too much fiddling about for my liking and too noisy. It has all sorts of other attachments but it takes too much time to dismantle and reassemble compared to a modern food processor. It was very good in its day though. I still use the juicer occasionally as I can leave that assembled - handy if I'm using my food processor for something else at the same time.
I use a good old-fashioned potato peeler instead of a spiralizer - not as fine but adequate for my needs - and a good old-fashioned cheese grater, and a potato masher. And I couldn't live without my bread-maker, although it is only used for mixing dough, and my coffee-maker.
As you've probably guessed, gadgets are not really my thing - I only treated myself to a toaster last year and that was to save putting the one in the oven on.