Paper Models of Polyhedra has a pdf paper model of a globe available near the bottom of the page. You can resize it.
Another thing to think about is to use styrofoam balls. They come in many diameters. You could even skin one if you want paper showing. 
__________________
~Doug~
AC010505 EAMUS CATULI! Audere est Facere THFC 19**-20** R.I.P. it up, Tear it up, Have a Ball
|