Having put all of this stuff in boxes, moved it to a new house and then unpacked it, I'm pretty sure I can answer this, at least for the things I know. For "use", insert "roomie who cooks uses them, I saw him".
Bold the ones you have and use at least once a year, italicize the ones you have and don't use, strike through the ones you have had but got rid of. There are additions.
I wonder how many pasta machines, breadmakers (will be used now we have space for it), juicers, blenders, deep fat fryers, egg boilers, melon ballers, sandwich makers, pastry brushes, cheese boards, cheese knives, crepe makers, electric woks,
miniature salad spinners (it fell apart :(), griddle pans, jam funnels (PrettyGirl Roomie has one! I saw it!), pie funnels, meat thermometers, filleting knives, egg poachers (do the microwave ones count?), cake stands, garlic crushers (chopped garlic tastes better, apparently), martini glasses, tea strainers, bamboo steamers, pizza stones, coffee grinders (Lauren), milk frothers (on Lauren's coffee maker), piping bags, banana stands, fluted pastry wheels, tagine dishes, conical strainers, rice cookers, steam cookers, pressure cookers, slow cookers, spaetzle makers, cookie presses, gravy strainers, double boilers (bains marie), sukiyaki stoves, ice cream makers, fondue sets, healthy-grills, home smokers, tempura sets, tortilla presses, electric whisks, cherry stoners, sugar thermometers, food processors, stand mixers, mincers, bacon presses, bacon slicers, mouli mills, cake testers, pestle-and-mortars, gratin dishes, apple corers, mango stoners and sets of kebab skewers languish dustily at the back of the nation's cupboards.
(Note: No doubt He Who Cooks can correct some of these...)