I made my first one ages ago - when Macca's boy was a wee newborn and had skinny wee legs & it was a struggle to find a nappy that would fit snug around his thighs. Melissa said that nappy was fantastic, and now 9 months on it's still a great fit on Jack.
Last night I made a pocket for James using this pattern. I'm so pleased with the fit, it's great! I might have to get rid of a few nappies to justify making some more for James using this pattern

The leg elastic is snap-adjustable so this pattern is best for those with easy access to a snap press.
Cheers Esther (and sorry for all the requests for your pattern that will follow...)