This is funny.  Yes, I did have some long armed ancestors.  Me, not so much, but grandfather was well over 6' and my uncle was probably 6'6" in his youth when he stood straight.  They both also had very good model building skills (they favored wood airplanes and gliders - many made just from plans or designs in magazines).  I'll ask my uncle if he remembers what kind of adhesive he used - he might remember.

Cheers - Thomas