Cantrip Coins

Small metal coins carved with simple symbols that denote what magical properties they hold. Each one is like a one time use of a cantrip or basic attack spell. Players can "use" them as a bonus action, having them essentially throw them at a target and making an attack roll (since it's technically a ranged attack, they could add their DEX modifier.)

The coin will vanish afterward, but it basically gives them a free spell and is particularly handy for non-spellcasters to get in some magic attacks. They'd be close to worthless at a market and are just meant to spice up combat. Sparingly add one or two to random loot and they'll become a precious commodity. I named each variety of coin, so that players could keep track more easily. For instance,

Basic Fix
Light - You touch one object that is no larger than 10 feet in any dimension. Until the spell ends, the object sheds bright light in a 20-foot radius and dim light for an additional 20 feet.

Mending - This spell repairs a single break or tear in an object you touch, As long as the break or tear is no larger than 1 foot in any dimension, you mend it, leaving no trace of the former damage.

Mother of Nature
Animal Friendship - This spell lets you convince a beast that you mean it no harm. Choose a beast that you can see within range. It must see and hear you. If the beast’s Intelligence is 4 or higher, the spell fails. Otherwise, the beast must succeed on a Wisdom saving throw or be charmed by you for the spell’s duration. If you or one of your companions harms the target, the spell ends.

Find Familiar - For one hour, you gain the services of a spirit in an animal form you choose. The familiar acts independently, but always follows your commands.

Beat Death at Chess
Feather Fall - Choose up to five falling creatures within range. A falling creature’s rate of descent slows to 60 feet per round until the spell ends. If the creature lands before the spell ends, it takes no falling damage and can land on its feet, and the spell ends for that creature.

Spare the Dying - You touch a living creature that has 0 hit points. The creature becomes stable. This spell has no effect on undead or constructs.

Damage
Poison Spray - 1d12 poison damage vs. CON

Ray of Frost - 1d8 cold damage