Common Magical Homebrew Items

Palaver Circle- two way walky-talkies to speak with entity on another plane

Residuum, Heart of Anima
The residuum is a clear circular stone about 1/2 inches in diameter. When placed on a creature's forehead, the creature must make a Wisdom saving throw (DC15) or be stunned. The creature may repeat the saving throw at the end of each turn. Additionally, the stone turns color, denoting plane of origin or possibly a plane from which the creature has traveled. A successful arcana check may be able to read details in the coloration of the stone, to analyze timeframe of the different planes a creature may have traveled.

Aether Crystals, Bones of Anima
Aether crystals are bluish uneven crystals, usually in chunks the size of a fist. Aether crystals are excellent conduits for spells, enabling a skilled artisan with the right tools to cast spells through them to infuse a magic item with magic. Magic items usually require recipes and the number of aether crystals required usually depends on the power of the item being created.

Sigil Stones, Sinew of Anima
Sigil stones are dark red cubes about an inch tall. They are warm to the touch and have some flexibility to them when pressure is applied. As the part of an action, bonus action, or reaction used to attack an enemy with a weapon, the attacker may press the sigil stone into the attacking weapon. If the attack hits, it deals an extra 1d12 damage of a random type. If the attack misses, then that particular sigil stone cannot be used again and it falls inert to the ground.

Font Fragments, Mind of Anima
Font fragments are long, jagged purple crystals about four inches tall. As a part of an action, bonus action, or reaction to cast a spell, the caster may slam the font fragment into his or her temple. The font fragment bestows the caster with one 1st level spell slot which may be used immediately in one of the following ways:
 * If the spell being cast is 1st level, the font fragment covers the cost of the spell and no spell slot is used for the casting of the spell
 * If the spell is higher than 1st level, then the font fragment reduces the cost of the spell slot. For example, if the spell being cast is 3rd level, the caster may mark off one 2nd level spell slot instead.
 * The caster may choose to cast the spell at one level higher without marking off a spell slot of a higher level. For example, if the caster casts a 2nd level spell at 3rd level, then the caster may mark off a 2nd level slot instead of a 3rd.

Chaos Bombs, Bowels of Anima
Chaos bombs are heavy glowing chunks of black and red ore about the size of a coconut. The chaos bomb can be thrown at a target area within 50 feet, detonating on impact for a random area effect. The effects vary wildly, but they are usually negative in some way.

Vigour Shards, Spirit of Anima
Vigour shards are small green chunks of crystal, about the size of a strawberry. By itself, one vigour shard is worthless. However, legend has it that when twenty vigour shards are collected and assembled together, they bestow a great boon upon the one who collected them.

Some possible boons:
 * Feat
 * proficiency/expertise
 * Ability score increase
 * Permanent spell slot
 * Save proficiency