@ChakiraChakra If you wok twice a year get a non-stick one instead of one that needs seasoning. Seasoned ones need to be in constant use really. Plus it'll offend the purists, who love to get offended by things that really don't matter. Bonus!
Our useless items are...
A buzzy milk frother electric whisk thing from DF who turns out to use one all the time at home, so it was one of those genuine gifts and not (as I initially thought) a comedy one.
Silicone oven things - as PPs have said, they smell. They don't seem to flavour the food thankfully, but they put me right off. Charitied.
Cheese board with knives in. It's smaller than a Camembert!
Camembert baking dish. Never used. I do like a baked camembert, but I can't eat a whole one without feeling ill and DP won't join in.
We do go through phases - silicone egg poachers were used heavily for a couple of years and they've just been lurking at the back of the cupboard looking like peculiar bra inserts for ages now. The second coffee bean grinder for spices has been displaced by a pestle and mortar. The bread maker was in continuous use for three years then got parked for fatness reasons. We did just acquire a spiralizer which has turned out to be great fun and not at all injurous - yet! I expect we'll charity it in a year or two.