Vanishing CoinConsumable 10
Source Pathfinder Core Rulebook
Price 160 gp
Weight negligible
Usage affixed to armor
Activate 
Envision
Trigger You attempt a Stealth check for initiative, but you haven't rolled yet
Requirements You are a master in Stealth
This copper coin dangles from a leather strip strung through a hole drilled in the center. Until activated, the coin becomes invisible for a few seconds at random intervals every few minutes.
When you activate the coin, it casts a 2nd-level Invisibility spell on you, lasting until the end of your next turn.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
ConsumableAn item with this trait can be used only once. Unless stated otherwise, it's destroyed after activation. Consumable items include alchemical items and magical consumables such as scrolls and talismans. When a character creates consumable items, they can make them in batches of four.
IllusionEffects and magic items with this trait are associated with the illusion school of magic, typically involving false sensory stimuli.
MagicalSomething with the magical trait is imbued with magical energies not tied to a specific tradition of magic. A magical item radiates a magic aura infused with its dominant school of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.
TalismanA talisman is a small object affixed to armor, a shield, or a weapon (called the affixed item). You must be wielding or wearing an item to activate a talisman attached to it. Once activated, a talisman burns out permanently.