Here are my 3 homebrew magic items for bards, I hope you enjoy!
Chime of Crescendo
Wondrous Item, Uncommon (requires attunement by a Bard)
Small, silver, and engraved with swirling musical notes, this chime was crafted by the legendary maestro Lyrican, who believed a single note could grow into a symphony of power.
While you strike the chime to grant Bardic Inspiration, the magic amplifies. If the inspiration die rolls its maximum, roll it again and add it to the total.
Gloves of the Conductor
Wondrous Item, Rare (requires attunement by a Bard)
Lore: White gloves threaded with silver, once worn by the famed battlefield bard Orphine, who led entire armies like orchestras.
While wearing these gloves, when you grant Bardic Inspiration, you can use your reaction to swap the positions of two allies within 10 feet of each other.
This does not provoke opportunity attacks.
Encore Ring
Wondrous Item, Uncommon (requires attunement by a Bard)
A golden ring shaped like a coiled treble clef, said to have belonged to the bard Thalyra, who could perform endlessly without tiring.
Once per long rest, when you roll initiative, you can regain one expended use of Bardic Inspiration.