Rainbow Socks by Strickwear by Candace Eisner Strick- Candace is a wonderful knitting teacher, take a class if you ever have a chance.
My daughter wanted socks to match with her sweather. I tried and think they match. The pair weights 99 grams
Ravelry: Flying butterfly socks pattern by Aud Bergo
Ravelry: Popping Dots Socks pattern by Natalia Moreva