Ornament of Prayer Beads
rare (requires attunement by a cleric, druid, or paladin)
This ornament (most often a necklace or bracelet, but other ornaments have been forged, such as torques or tiaras) has 1d4 + 2 magic beads (or prominent stones) that display prominently in the ornament. While wearing the ornament, using a bonus action, the attuned wearer can stroke one of these beads or stones to call forth a magical effect (using your spell save DC if a save is necessary). The attuned wearer is aware of all beads/stones on the ornament and their charged/used status; once a bead's spell is cast, that bead can't be used again until the next dawn.
If a magic bead or stone is removed from the ornament, that bead loses its magic.
Many forms of beads exist; their most common materials and their chances of appearing randomly are given in parentheses after the name. These are arranged in order of commonality.
Blessing. (aquamarine, 6 in 20) The attuned wearer can cast bless as a 1st-level spell.
Wounding. (fire opal, 6 in 20) The attuned wearer can cast inflict wounds as a 2nd-level spell.
Infamy. (black opal, 6 in 20) The attuned wearer can cast inspire dread as a 2nd-level spell.
Curing. (topaz, 6 in 20) The attuned wearer can cast either cure wounds as a 2nd-level spell, or lesser restoration.
Favor. (coral, 4 in 20) The attuned wearer can cast greater restoration.
Smiting. (bloodstone, 2 in 20) The attuned wearer can cast branding smite.
Sanction. (quartz, 2 in 20) The attuned wearer can cast zealous sanction.
Resolve. (jade, 1 in 20) The attuned wearer can cast marshal's resolve.
Summons. (pearl, 1 in 20) The attuned wearer can cast planar ally.
Wind. (citrine, 1 in 20) The attuned wearer can cast wind walk.
Grave. (garnet, 1 in 20) The attuned wearer can cast create undead.
Note that each use of a bead draws the attention of the attuned wearer's diety, so each use of the bead should be in direct support of that diety's aims or goals; too many uses not directly supporting the diety's agenda could result in divine warnings or, in the most extreme cases, censure.