Crackers are a traditional part of Christmas for many people, but they are also extremely wasteful. One option is to go for ‘eco-crackers’. There are loads available now, here are some ideas from a Which? review, sadly the RSPB ones are out of stock:
https://www.which.co.uk/news/2020/11/which-eco-christmas-crackers-get-the-thumbs-up-from-the-whole-family/
You could even look at making your own crackers! Here is a link to some eco-snaps to get you started: https://reyousable.eco/products/replacement-eco-snaps?_pos=1&_sid=8bb5358c2&_ss=r
There are loads of ideas on Pinterest to inspire you, just search for ‘eco-friendly Christmas crackers’ at https://www.pinterest.co.uk/.