Zero Waste gift for teenage niece

This year I have been given no hints from my teenage nieces as to what they want for Christmas, perhaps they are just too cool!? Not helpful.
So as one of them is doing environmental studies at college I've decided to give her a zero waste gift, she'll have to at least be grateful I've given it some thought.
I've made ten reusable makeup wipes and their own wash bag. These are lovely and soft actually! I'll be making some larger ones for myself, I don't wear much makeup, but I would use a scrubbie in the shower.
Pattern for the wipes here: http://moralfibres.co.uk/diy-reusable-cotton-wool-pads/
The bag was modified from this pattern: https://www.ravelry.com/patterns/library/crochet-baby-sock-laundry-bag

The beauty of a gift like this is, the cotton string comes in a paper strip so there's no waste at all! They are washable and can be used indefinitely!