Sabertooth Cat, Smilodon californicus Skull - You can buy things like this for your Boho home library that are made of resin. Faux fossil skulls will do the job you seek - which is freak out the grand-kids!
Babirusa Skull - A hairless, prehistoric-looking member of the pig family is found in Indonesia. Some scientists believe it may be more closely related to the Hippopotamus. Only males sport these impressive, wildly bizarre tusks.
Pachycephalosaurus - the ROM - Kendra Spence Pachycephalosaurus is a genus of pachycephalosaurid dinosaurs. The type species, P. wyomingensis, is the only known species. It lived during the Late Cretaceous Period of what is now North America.