Do your characters have appropriate talismans?

In a setting where magic is more-or-less commonplace, superstition becomes pragmatic.  Charms and amulets become less frivolous and – perhaps – gain some degree of efficacy.  Presented here is a plate from The Book of Talismans, Amulets and Zodiacal Gems along with notes from that tome.  What game effects – if any – would these items have?  What would it take to 'activate' one of these things?  Would the owner need to wear it for a year and a day?  Perhaps 'invest' a hit point?


104:  Harpokrates – “...god of eternal youth and fecundity...”
105:  Caduceus – “...the wand of Mercury...worn to render its possessor wise and persuasive, to attract Health and Youthfulness, as well as to protect from the Evil Eye.”
106:  Horn – “...worn to protect from harm, danger, and...evil influences...and also a charm to attract good fortune and success.”
107:  Anubis – “...the Guardian of Souls in the under-world.”
108:  Bull's Head – “...worn...for success in love and friendship and...was also worn by men for Strength and Long Life.”
109:  Hand – “...a Talisman against fascination...”
110:  Key – “...the joint symbol of...Apollo...and...Diana...and was worn for Prudence, and for Remembrance of things past, and foresight of things to come...”
111:  Hand of the Lady Fatima – “...a sacred symbol representing Generosity, Hospitality, Power, and Divine Providence...”
112:  Salus Ring – “...worn for Health and Success in all undertakings, as well as for general Good Fortune.”
113:  Crescent – “...worn by Roman women upon their shoes as a safeguard against witchcraft and to prevent the evil spirits of the moon from afflicting them with delusions, hysteria, or lunacy...”
114:  (Zufur Tukiah) letters making the name Nasiree – “...the Preserver, one of the names of God...”
115:  (Zufur Tukiah) letters making the name Gadiri – “...the Powerful, also one of the names of God...”
116:   (Zufur Tukiah) letters making the name Mohammed
117:  Pine Cone – “...the symbol of Cybele the goddess of abundant benefits...”
118:  Cornucopia – “...the symbol of Abundance, Fruitfulness, and Prosperity...”
119:  Frog – “...worn for fertility and abundance.”