Hello guys. A thought just popped up in my mind and I wanted to share it with you.
We see in rhythm of war that Raboniel is unmaking or corrupting the Sibling. Is it possible that the unmade once were honor's spren and not odium's but were corrupted or unmade by trapping them in gemstones and then infusing the gemstone with voidlight? If it is so then can they be remade again by trapping them in gemstones and then infusing the gemstone with anti-voidlight or stormlight?
I don't think the radiant spren can manifest in the physical realm as a Shardbow as the metal they manifest as is unbendable. Moreover, the bow will require a string and I don't think that is possible either