Advise, please

For Christmas this year I got a couple of little things for Lunch Buddy. She'll like them, she doesn't need them, but she'll groove on them. What she needs is to bath her dogs more frequently. She brought one up to work a couple of times over the last month and it was awful, Not in a "what the hell are you feeding that Dog?!", lower GI stank issues, more like "I think we found our missing vic" kind of eye watering stink issues. Gawd awful bad. Clothing permeating bad, So bad I don't want to touch the fuzzy wuzzy and if I do accidentally touch it then touch my clothing, I have to go home and quickly launder whatever it is before it smells up my house.

How do I politely tell LB that I will wash her dogs for her? She doesn't think that they smell, and if I say "Hey, Merry Christmas! LB, I'm gonna launder those dawgs for you!" she might take it as a dig to her mad dog mothering skilz.

So, to the person who can best tell me how to tell her that for Christmas this year Santa is putting clean dogs under her tree - there will be a lovely holiday tin of all natural, preservative free, home made Aunt Cookie's Dog Cookies for the best answer.