I have used the Caron Simply Soft Yarn (Heather Grey for the body of the cozy, Watermelon for the rosebud).
For the butterfly and rose leaves, I used some scrap yarn that I have left from my previous projects.
To begin, I chained 17 (for my iPhone 6S).
Starting at the 2nd chain from your hook, do half double crochet across on each of the 16 chains.
Continue with half double crochet for the other side of your chain, that will make another 16 half double crochet. So you will have a total of 32 half double crochet as an oval/rectangle shape. I used a stitch marker to mark my first stitch because I will be working in continuous rounds (instead of joined rounds with a joining mark in the finished piece).
Do half double crochet for another rounds until 2/3 of the height of your phone with 32 half double crochet each round. Mine ends in row 10.
The next round (Row 11 of mine) will be changing to the first color (for the butterfly or leaves depending on which one you would like to do). MyPicot has very good instructions on how to do the butterfly with antennas : Crochet Butterfly Stitch. The position of the rosebud with leaves or butterfly will be up to you. I will show below how I did the rosebud with leaves.
Join green yarn and single crochet in the first 8 stitches, and now starting to make the 2 leaves: chain 3
Insert your hook from back to front into a half double crochet below (like the picture below) and make 1 single crochet. Where you insert the hook will be the where the tip of the leaf (left one) be positioned. To make the leaf, in the 3 chain space, you make 1 single crochet, 1 half double crochet, 3 double crochet, 1 half double crochet, 1 sc.
To make the other leaf, chain 3, and then insert your hook from back to front again in a half double crochet that’s 3 stitches from where you positioned the left leaf and make 1 single crochet. Now repeat what you did for the left leave: in the 3 chain space, you make 1 single crochet, 1 half double crochet, 3 double crochet, 1 half double crochet, 1 single crochet. Then continue making single crochet across to the end of the row.
Next round (row 12 of mine) you join pink yarn and single crochet in the first 8 stitches, and now starting to make the rosebud: chain 12, 3 double crochet in the 4th chain from the hook, and then 3 double crochet in each of the remaining 8 chains, chain 3, slip stitch in last chain. Turn and roll spiral together from one end, rolling towards the other end. Form strip together into a rosebud shape. Insert hook through bottom side of rose and sew all layers of the rosebud making slip stitch. Repeat this slip stitch process one more time, chain 1 and turn. Then continue making single crochet across to the end of the row.
Join grey yarn and repeat the half double crochet across process until you reach the height you need. You should still have 32 half double crochet each round. Mine is from row 13 to row 23.
Row 24 (to make the wristlet hole and strap): chain 45 (making the strap), skip 5 half double crochet (make sure the 5 you are skipping are in the center of the cozy), single crochet in the next 11 half double crochet, chain 5, skip 5 half double crochet (make sure the 5 you are skipping are in the center of the other side of the cozy), single crochet in the last 11 half double crochet.
Row 25 (to make the wristlet hole and strap thicker/stronger): make half double crochet in each of the 45 chain, single crochet in the next 11 single crochet, make 5 half double crochet in the 5 chain space, single crochet in the last 11 single crochet.
Fasten off and sew in ends. Here’s the completed rosebud wristlet:
Thank you for reading and hope you have fun making this beautiful cozy. Comments are welcome.