5E Trinket

A brain made from shell that disappears for a few hours each night
A bracer made from leaves that is a good luck charm
A lump of pewter
A vase made from wood and fur marked with the Gnomish rune for "Beloved" that changes color when exposed to bare skin
A celestial platinum coin with a name written in Goblin
A mechanical doll that glows with a green aura
A silver locket with a name marked in Infernal
A mechanical rat that self winds and performs three or four random tricks at random times
Invitation to a party where a murder happened
A preserved goat foot that sings a lullaby at dusk