@Abbeeroad and @MistressJennie introduced me recently to the wonders of Apoxie Scuplt which is a miracle substance, much like clay, that hardens to a water-proof solid that is a great foundation for things like mosaics (without all the mess!).
I was intrigued and had to try it out. After acquiring the miracle product, I dug out a bunch of bits and bobs and then went to town. Warning though, if you want to try this, be prepared to be patient. Placing all the tiny beads and baubles takes a while. It’s really helpful to break up your project into smaller areas instead of trying to cover a whole surface at once. The clay is mouldable for a couple of hours, but not forever!, before it starts to stiffen and cure.
Here’s a couple of rock “paperweights” and a pencil holder - though I think the pencil holder could make a super cute small planter.