There's a charming looking double-ended skiff that's been posted on Gavin Atkins's intheboatshed.net :
It looks much like a sailing version of Paul Gartside's design #105, although I'm pretty sure it predates it.
(#105 is the lower picture)
I've looked around a bit, but I can't find much information about this skiff. It appears that I could buy a book or an article from The Press at Toad Hall, but neither seems to have more information than the article at intheboatshed. The double-ended type doesn't seem all that popular for small boats, but why not? Gavin Atkin mentions adapting this design to glued lapstrake - anyone have an thoughts on how feasible this would be or if it would be a good idea?