This Lego Marvel Galactus minifig actually started out in life as the Lego Monster Fighters Mummy Clock, and it stood just over 9″ tall. The poster did some serious deconstruction to the clock to get it ready for sanding and painting. The horns on Galactus’ helmet were created from clear Plexiglas. Most of the detail pieces are 2mm craft foam; the others are dowel rod.
The poster was able to order decals online for the body details, but within the Imgur post, he/she posted the decals they designed, to scale, in case anyone wants to use them.