This cardigan has chunky bauble sleeves, it is made using a simple hdc (htc UK) stitch and a bobble stitch for the sleeve, it is quick and easy to work up. The sleeves work up a bit chunky but they can be worked up with a hdc instead!

Materials
dk / weight 3 yarn (I used Stylecraft DK (295 metres per 100g) Dandelion Yellow for the main colour and two rows of each colour Matador Red, Grass Green, Cloud Blue, Bluebell, Plum, and Magenta for the sleeves.
3.5 and 4 mm crochet hooks
5-8 x 20-25 mm buttons

Written in English US terms with abbreviations for UK terms

The PDF is 25 pages with photos, a link to a video for the stitch used. Each size written separately.