Pressure

I am interested in the juxtaposition of two contrasting but aesthetically balanced materials. Wood, ceramics or other materials wrapped around a glass bubble, pushing and squeezing it so tightly, the glass is trying to escape the
knot, like a snake squeezing a balloon where pressure forces the balloon to expand in all unobstructed directions. I want to trap the glass in a net of massive obstacles, which will highlight the escaping glass pieces as the important contrasting component.