Below this thread you may request specific plugins to be added to the server. It would also help if you include a link to download the plugin as well (though it is not required.) Also note that we are requesting plugins not mods, as this is a Vanilla only server and does not run on Forge or Fabric.
Its a datapack not a plugin, but I think it'd work a lot better than your current disc plugin.
I've used it before on a server with my friends and it works great imo.
It has a little app that lets you add infinite discs with custom names and icons without overwriting current discs.
It even lets you get them all the good ol' fashioned way of a skele shooting a creeper
It does need ppl to have a texture pack on to work tho