Where to place the bones (with a bicone bead glued to each end) was easy to decide after all, but what to put above that took a lot of auditioning before I settled on stamping on grey card then cutting to fit the Alterable's shape, and a chunk of mother of pearl shell.
Silver Crow Creations has all sorts of quirky stuff - like the roulette wheel, which spins when you twirl the nob in the centre and the ball spins round too. They have all sorts of ephemera scraps too, some in random bundles, which is how the bride came my way.
Lost Coast Designs have a series of dictionary stamps - like "Eternity" used here
Paper Whimsy have a great selection of masonboard "kits", like the Spooky Terrarium.
Golden Paints are a good quality brand that I can easily get in NZ - unlike so many other goodies.