Here are the seven phone charms in the bonus edition of the game. If you're not sure which ones you have so far, pull up Nancy's phone and you'll see them dangling there.
-- Antiquities tent, left table, inbox: golden pyramid
-- Main chamber, in the pile of sand to the right of the entrance to tunnel 2: white Horus eye
-- Cat tomb, between the black cat statues on the right: black cat
-- Sarcophagus with parchment scraps: mummy
-- Outside antiquities tent, after you sort the amulets and investigate the rip in the tent: green scarab
-- Inner tomb, on the right wrist of the statue at the right when you zoom in on the hieroglyphs: jeweled pharaoh head
-- Steps past the locked gate, tunnel 6: black jackal