Flowers, wine, food, lunch or dinner out with you, theatre tickets, concert tickets, vouchers for any of the preceding, days out at a quieter time of the year, music or books of their choice (Amazon Wish List is very useful here!) a donation to their favourite charity (my favourite gift to both give and receive) with a tiny token something...part of trying to live more simply.
It can be really awkward to go against the trend and say you don't want anything for Christmas or to 'make demands' by asking for certain types of things. Only you can assess how to approach the subject, if at all! Also it's a bit late for this year. It might be best broached in late autumn when it's likely to be less emotionally loaded. and the presents are less likely to be already purchased!
Sometimes you just try to be gracious.
My Uncle John at the bottom of the amusing invitation he composed for his 90th birthday party and ceilidh wrote 'For God's sake no presents!'
Bigger donations and smaller gifts is the trend in our family.
Being together is the real gift and the most fun if you are as lucky as I am with lovely friends and family.