Here are a few ideas that popes in my head!!

lower leg dagger attachable to the lower leg

Instead of a side blade, a side gun would preferable be exactly on the side of the body like a cowboy?

A sort of accessory that looks like the bomb bandolier but instead of bombs bullets??

Double side blades perfect for a ninja outfit or what ever you like

rose aura perfect for a girl knight making them feel beautiful!!

Also would love too see bowties added :)

Please leave feed back about one you like or dislike :D