Hi Bonnie,
Yes, you can do this, but it’s going to be a bit tedious. The resin will want to drip off the beads, so you are going to have find a way to let the beads hang while this happens. You also need to let them hang off of something that resin doesn’t stick to, otherwise, you will cement the beads down. A thin dowel or other string generously coated with wax is what I would use. You will also need to rotate the beads frequently (like rotisserie style) to keep the resin even.
As for a resin choice, any of our doming resins will work for this. You can find them in our shop here: https://shop.resinobsession.com/collections/resin/doming