I feel like you could make a cool ancient Egypt themed exhibit based around Egyptian mythology - "Gods on Earth", or some such thing. Exhibits of live animals, such as sacred ibis, hamadryas baboon, hippo, crocodile, and jackal - alongside statues of their respective deities. You could even have an exhibit of actual mummified animals (in a climate controlled setting). I've seen ancient crocodile, ibis, and baboon mummies in museums before, so it would be neat to incorporate some of those. The nearest US exhibit I can think of that mirrors this is the new(ish) Nile croc exhibit at St. Augustine