I actually made Henry 3 pairs of pants last week, all just from tracing patterns from existing pants. See other pair here.
I was inspired to make pants because so many of his store bought pants are too "wide" for him. But these brown ones turned out even a little too narrow which is a shame because with those big cuffs, he could keep wearing them for years if not for that.
I think these stripey ones might actually be my favourite of the 3. They are just made from sleeves from an old shirt so barely any sewing. I need to keep using this technique before his legs get too long! And note how well I matched up the stripes!