What is an example of a translucent material other than a stained glass window?

Stained Glass Windows are much more of a sight to passers by, when walking past a church would you rather see coloured glass or clear glass? There's your answer.

Most of the time they're not, but you can see a little bit through them.

Anything halfway between clear (transparent) and Opaque (doesn't transmit light). I often think if a clear/white translucent like some PEX tubing, polyethylene, Teflon tubing, some tupperware, &...

it is translucent because it lets the light shine through

It's pretty.