Leave it to my 13 yo DS to tell me about this, but the reviews on this candy are hysterical, and the consequences to your annoying MIL, SIL etc. would be quite enjoyable for you!
https://www.amazon.com/Haribo-Gummy-Candy-Sugarless-5-Pound/product-reviews/B000EVQWKC/ref=dp_top_cm_cr_acr_txt?showViewpoints=1
Re: Gift for the biosh on your Xmas list!