You can use anything from broken china and stoneware to the more expensive glass tiles or better yet, make your own "tiles" from glass that you cut into the squares yourself.
There are also several sellers on Ebay and similar sites that sell the glass tiles or squares already cut for you.
Hope this helps!
Here is the link to the Ebay glass mosaic tiles:
http://shop.ebay.com/?_from=R40&_trksid=p3907.m38.l1313&_nkw=glass+mosaic+tiles&_sacat=See-All-Categories
Here is one more that's broader search...mosaic tiles. This includes glass, stone and such.
http://shop.ebay.com/items/?_nkw=mosaic+tiles&_sacat=0&_trksid=p3286.m270.l1313&_odkw=glass+mosaic+tiles+for+birdbath&_osacat=0
It is best to remove the vinyl tile. If it is not on cement and is on wood you can install cement backer board. Be sure to put thin set under the board. If you spend the money and time to install ceramic tile and the vinyl tile comes loose all that $ is down the drain What is the best tile cement to use and this cement tile can be installed on vinyl tile and install ceramic tile on it
Thinset tile cement.
cement board
A copper bird bath is a copper vessel that holds water for birds to bathe in. One advantage of a copper bird bath over an iron bird bath is that copper does not rust.
Yes, use a good thin-set cement.
Use petrol or paint tinner...
Yes, if the adhesive is smooth, no lumps and if you use a compatible glue, not thinset cement
You use thin set cement, a bit like very smooth concrete.
You would use litres
It would fairly difficult and kinda dangerous to make a bird bath heater yourself, as it would require heating elements and building electric switchs. But if you google bird bath heater you will come up with many shops that sell them.
Not JUST a grout no. You can get a cement that will also work as a grout but a pure grout would not have the adhesion required to stick the tiles to the wall properly, you should not use it as a cement.
Grano Screed is a type of flooring. The flooring is a tile-type of flooring. You need to use cement to put the flooring down.