When cold weather hits, there’s nothing like snuggling up to a toasty hot water bottle. Here are a bunch of patterns and tutorials for making covers and cozies for them so they’re even more snuggle-friendly. These are mainly knit and sewing but I found a couple nice crochet ones too. Enjoy!
Bold Check : Worked in a bold check design and bright hues, it’s sure to warm the heart.
Quilted : Top is made in a contrasting fabric and features a fun ruffle across the bottom.
Cabled : Velvet ribbon is threaded around the neck for closure (tied in a bow).
Wool Remnants : Sewn with wool remnants and larger scraps.
Bulky : Features a back hole for easy removal.
Penguin : A fun one for the kiddos!
Hoot : Features an owl cable design.
Child’s Version : This adorable project is made from a hand towel, tutorial is free but pattern for embroidered design is for sale (or whip up your own).
Drawstring Neck : Lovely design with a tie-closure at the neck.
Cable Front : Available via pdf download.
Snuggly Heart : A quick and easy project that can be finished with a heart motif or any design you wish using yarn in a contrasting color.
Haworth : Done in the round from the bottom up in one piece. There’s a buttonband across the back.
Also check out this microwave heating bag project  (filled with uncooked rice, barley, flax seed, etc.).