painting and sealing a ready glazed tile?

[mistressH]

Hope this is in the right place!

I have a stash of white shiny glazed tiles I want to turn into amazing beautiful flower pot stands.

I'm after some advice as to the best type of paint and varnish/sealant to use please. Also some links so I can work out the UK version of products would be immensely helpful!

Thanks in advance
H

[mistressH]

Anyone?