I made couple of Tiger wood rings before but this is the first time I have used SS core. I think that the patterns on this timber are so interesting and they look very unique. I used cactus resin to bond the SS core inside the other timber ring. And for the finish I polished it using CA so it should be ok even if it gets wet but I always recommend to take of your rings before your hands get in the contact with water. Common sense I guess is the best guideline here.
Here are some photos taken during my hand crafting process. I hope you like it.