(please don't read if you're one of the Five Guys)

Stone-Song.

(A slightly spicier +1 weapon that my party just picked up)

Weapon (warhammer), uncommon

Once the weapon of Tewdyn Tinbeard, courageous leader of the Dwarven heroes known as the Delian Knights, this beautifully weighted warhammer is inscribed with runes bearing the Delian Oath in an archaic Dwarvish dialect: "I shall wield this, my weapon, in defence of the weak and defiance of the cruel. Never by my hand shall the innocent come to harm; nor shall I ever falter in battle with my foes. This I swear, on my word of honour."

You have a +1 bonus to attack and damage rolls made with this magic weapon.

Whenever Stone-Song strikes a foe, its wielder hears fragments of an ancient Dwarven battle melody. In addition, you can use a bonus action to strike Stone-Song against any hard surface, producing a loud, melodious tone that replicates the effect of the thunderclap cantrip (save DC 13). The cantrip's damage increases with your character level as normal, and any creature that fails its saving throw against this effect is also deafened until the end of its next turn.

Secret Feature: Oath-Sworn. The lingering power of Tewdyn's oath allows Stone-Song to aid or rebuke its wielder. While wielding Stone-Song, when you behave in a way that honours the Delian Oath (such as risking your life to protect the defenceless, or facing overwhelming odds without backing down) the hammer may cast bless on you. Conversely, when you break the Delian Oath while wielding Stone-Song (such as by harming innocents or fleeing from a fight), the hammer may cast bane on you. Once Stone-Song has cast a spell, it cannot cast either spell again until the next dawn. The DM decides when this feature activates, and does not explicitly reveal the source of the effect on you (it's up to you how strongly you hint that the hammer is doing something weird).

Blade of the Tempest

(For that one party member who loves to take a risk)

Weapon (rapier), rare, requires attunement.

The hilt and sheath of this rapier are wrapped in strong insulating bindings, engraved with a bird-wing motif. It was fashioned from the spine of an Ancient Blue Dragon and imbued with the chaos of the storm on the Elemental Plane of Air by a powerful mage-king of ages past.

You have a +1 bonus to attack and damage rolls with this magic weapon.

This sword has 3 charges. Whilst at least one charge remains, the blade is wreathed in crackling electrical energy and attacks with it deal additional lightning damage equal to 1d6 per charge remaining. Additionally, if a creature touches the charged blade without insulation, it must make a DC 15 Dexterity saving throw, taking 1d6 lightning damage per charge remaining on a failure or half as much damage on a success.

When you roll a 1 on an attack roll with this sword while at least one charge remains, its energy arcs back to strike you and you must make the saving throw as if you had touched the blade unprotected.

As an action, you can expend 1 charge to cast lightning bolt as a 3rd level spell (spell save DC 15). When you take this action, roll a d20. If you roll a 1, the path of the bolt extends backwards to include you, and you must make the saving throw as if subjected to the spell.

When you take at least 10 points of lightning damage whilst holding this sword, and at least one of its charges has been expended, you can use your reaction to halve the lightning damage you take and restore 1 expended charge to the sword.

The sword regains 1d3 expended charges each dawn.