In need of a summer project? I can recommend some rhombus crocheting…
This pattern is fairly simple:
(I use US crochet terms.)
All the rhombuses (or rhombi if you like) are crocheted in the same pattern of 20 rows, except from the halves (triangles) were you stop after row 10.
For a blanket like I made, measuring 100 X 160 cm, you will need:
45 blue rhombuses
45 black rhombuses
41 white rhombuses
8 half rhombuses
With my gauge (10 cm = 17 dc) I got a little more than 5 rhombuses from a ball of 50 grams.
I used DROPS Karisma. The finished blanket weighs 1250 grams.
Leave a 25-30 cm tail in the beginning and end of each rhombus. These ends can be used to sew the rhombuses together later. Use the diagram below to see where you use the different tails.
Pattern:
---The first 3 ch on each row is counted as 1 dc---
Row 1: 4 ch, 1 dc in first ch.
Row 2: 3 ch, 1 dc in same stitch (where the needle points in top photo), 2 dc in next st (where the needle points in bottom photo).
Row 3: 3 ch, 1 dc in same st, 1 dct in next 2 st, 2 dc in last st.
Row 4: 3 ch, 1 dc in same st, 1 dc in next 4 st, 2 dc in last st.
Row 6-10: Continue in the same pattern, increasing in the beginning and end of each row, and making 2 more dc in the middle of each row.
After row 10 you have made half a rhombus. You will now start decreasing in the beginning and end of each row. Decreasing = crochet 2 dc together.
This is how you do it: (Yarn over, insert hook in next st, yarn over and pull up loop, yarn over, draw through 2 loops) 2 times, yarn over, draw through all 3 loops on hook. This video is helpful.
Row 11: 2 dc together (the needle in the top photo show where you will make the second dc), 16 dc, 2 dc together.
Row 12: 2 dc together, 14 dc, 2 dc together.
Row 13-18: Continue in the same way, making 2 less dc in the middle part on each row.
Row 19: 2 dc together, 2 dc together.
Row 20: 2 dc together.
And as a bonus – here is a diagram for you! 
Good luck!
And if you use the pattern, please leave a link so I can see what you are making
