Also a nice idea: wrap a cheap glass vase with masking tape, * apply plaster to a cheap glass vase, ‘carve’ to your taste and you have a simple plaster vase :)
Personally I’d paint it in another colour, but that’s of course a matter of taste.
Links:
Simple Plaster Vase (Make a cool plaster vase) (video)
* Farrell corrected in the comments that the vase is not wrapped in masking tape.
You don’t wrap it in masking tape.
Sorry, Farrell, that was a misunderstanding.