How do I make bubble font text?

[denzjos]

Blighty, just put the Plastic Or Glas script in my scripts folder and this is the result if I ask for plastic :  

   

If I undo after a few times after the scrip is done, I see 5 layers. If I switch the first two layers then I see a plastic font. (bug in the script ?)
If I select glas then is the result poor, there is only a little dark bump to see.

The script give no error