I don't sew all that much for the boy - It's not like you can make a 10 year old boy the cute little outfits you could have when they were little. I do like to make his basic pants and things though.
The pattern is Jalie 2918 which I have also used for my husband with excellent results. I started with white Stella and dyed it what I thought would be a sky blue. It came out awfully light and washed out which I now realise was probably due to a too low temperature in the mixing and curing.
I gave it another go with cobalt blue and better temperatures and it came out perfect! I love this colour on my blue eyed boy.