Little extra for a couple - not food/drink or anything you can buy in Waitrose

[secondhoneymoon]

Thought I'd finished my shopping but need a little extra something £5-10 to finish off a gift for a couple. He works for Waitrose so they always have plenty of the usual things I would buy in that situation, so no booze/cakes/chocs/flowers/foodie gifts etc. I've given candles before. On the other hand I'm unlikely to get anywhere other than a supermarket between now and seeing them and too late to order online, but there are lots of things I can get from supermarkets that aren't the things he brings home by the truckload each year!! . Any thoughts appreciated! Thanks

Supermarkets have sold out of many of the nicer bits.
Sainsburys had a nice quality embodied Christmas cushion but obviously it would have to suit their style/ decor.
Asda is well stocked with games - something for them to play on the day.
Coffee table book?

This is a case for, not a present, but a M&S present. It will be lovely and have novelty value, too.

Thank you for the suggestions