hi Filipei I fit kitchens and bathrooms and from time to time use granite and marble in the installation , mainly worktops . The main reason you can't find small marble bases is the extreme cost of tooling for both in cutting and polishing . Blades need to be diamond coated for cutting and running in a water bed, polishing is done under high pressure water . I'm afraid it's down to pure economics , it's just not wort it , unless you can get some 3rd world country to make them where health and safety are a laughing matter !!
If you want to glue pieces of tiles together to make a base then 2 part clear epoxy glue would be your best bet . And if you are thinking of drilling a hole for a rod for a bust bare in mind you will have to buy a carbide coated drill bit that will set you back another £10 .
The best advice I can give is to look around car boot sales , lots of old stuff mounted on alibaster .Try shops that sell trophy mountings . But by far and away the best method is to paint wooden bases with oil paints using a variety of fine brushes and feathers to create marbling , loads of info out on the web how to do this .
chippy
