Almost no one likes lip balm.
In fairness, almost no one likes wedding favours at all!
Like @gingersausage, I've had cause to be at the closing stages of an awful lot of weddings, and I've observed absolutely the same thing -- favours that aren't immediately edible just get left.
I could probably have had a sizeable museum of personalised packets of flower seeds, jigsaws, jam, fridge magnets, scented candles, 'fun' socks, crackers, colouring books, rubik cubes, 'grow your own chili/herb' kits, temporary tattoo kits, wine stoppers, coasters, mini board games etc etc etc.
Yet I've also noticed that every time people say this on a wedding forum, there is massive resistance to it being an unnecessary waste of time and cash. The bride insists that theirs will be different, that she's always loved and kept all the favours from every wedding that she's ever attended, that all the friends she's mentioned it to say they will cherish their personalised coffee stencil which means they can for the rest of their lives put powdered chocolate on their cappuccino froth in the shape of 'Fiona and Steve, October 20th 2019!'