Any Star Wars loving kiddo will want to wear this Darth Vader Sweater year round. Includes a detachable cape. Pattern suitable for child sizes 2-10.

A funny and cute Baby Yoda Costume for the youngest of padawans. Pattern includes hat, mittens and booties. Size to suit 12mo.

The essential costume accessory for any witch or wizard on Halloween. Made from soft velvet yarn for an extra touch of sparkle.

A very versatile poncho. Just throw this spider web over anything black and you have yourself an instant spooky costume. Looks easy enough to make with basic crochet skills. One size fits most adults.

Even if you have short hair, your dreams of dressing up as Princess Leia from Star Wars can finally come true. No need to bother with fussy hairstyles, just pop on this hat with attached knitted hair buns and you are set to go.

A fun toddler Halloween costume for that cute little pumpkin in your life. Pattern includes sizing from 6mo up to 24mo with plenty of growing room.

So many costume options with this gory brain beanie. Dress as a brainy scientist, zombie attack victim. giant brained alien, or just wear it as a ‘thinking cap’ to help your ideas flow. Available in 7 sizes from newborn to adult.

This baby bat costume is just the cutest thing ever! This seller also has a baby butterfly onesie costume for those of you with aversions to flying mammals. The Baby Bat Costume is a hat and onesie set. It includes baby's sizes 6 and 12 months.

OMG! Can these crochet Halloween costumes for babies get any cuter? I wonder if kissing this little frog will turn me into a princess? Pattern size available from newborn to 18mo.

Let your little one sail across the ocean wearing this DIY Moana costume. Very clever use of yarn to make a grass skirt effect. Instructions available for multiple sizing.

This pretty Anna dress includes a crown and braids. More of an Elsa fan? This seller has also designed a crochet Ice queen dress pattern. Sizing available from NB to 8yo.

Heavy metal helmets are overrated. Instead make this soft and cozy viking helmet with horns! Throw on with a tunic and cloak and you have the perfect viking costume. Pattern size includes Small, Medium and Large.

Step back in time with this Medieval Knight of the Realm Costume. Pattern includes Tunic, hood and cuffs. Made with metallic yarn to look like real chainmail.

Such a practical pattern, this hooded cape can lend itself to so many costume uses. Sizes available from Child small to adult large.

Boned corsets are so uncomfortable to wear (and difficult to sew). Get the same look with this crochet corset, an ideal addition to any period style Halloween costume.

Another fun viking helmet, but this one has the option of a very luxurious beard. Looks particularly amusing on ladies or young children.

Add a little unicorn magic to your Halloween costume with this adorable unicorn horn headband.

And of course no unicorn costume is complete without a pair of rainbow unicorn leg-warmers!

Whip up this Butterfly costume in a weekend. Made from colourful chunky yarn, you'll be surprised how easily this costume works up.

This funny Old lady costume idea is so adorable. What a fun idea to make a wig from yarn. Add some glasses and a cardigan, and you are all set. Pattern size available from NB to adult.

Fans of the new Toy Story film will recognise Forky, an unusual toy made from a spork. Wear this hat with a white outfit, and you have an instant Forky Costume.

A very detailed knitting pattern designed for the ultimate Marvel fan who longs to wield the power of the Infinity Gauntlet. Also available in a crochet pattern version.

A simpler version of the Iron Man Infinity Gauntlet in the form of fingerless gloves. Fun to wear year round.

Muggles beware! EAR PROTECTION REQUIRED! The cry of the uprooted Mandrake will kill! The perfect costume for babies of Potter fans. Mandrake Hat is 6-12 month size

This wrap is inspired by a costume piece worn by Katniss in the Hunger Games movie, Catching Fire. It looks like a piece of modern armour and would make a great accessory worn in the colder months. Sizes available - Adult size S,M, L,XL, Kids size (age 7 and up)

Hands up if you had a Cabbage Patch Kid doll. The original ones had yarn hair just like this wig. Many hair style variations included.

This Trolls hat is truly hair raising! This pattern includes 51 pages of detailed instructions to guide you though the crochet process, step-by-step.

A beanie that will keep your face warm. So cute! Add a checked shirt and you have an instant Lumberjack or Hipster Costume.

Top hats are hard to come by, so if you are looking for the finishing touch to a magician, Steampunk or Victorian style costume, crocheting your own hat could be an easy option.

What could be funnier than a lobster costume? The hat ties are lobster claws. Haha! Available in 5 sizes.