Artificial rock using styrofoam

[maxinger]

I want to make artificial rock using styrofoam.

I will need some thick slab of styrofoam.
Where can I buy it?

 

[glarerder]

art friend has it. you can also buy a couple of styrofoam and glue them together

 

[fluffyfox]

an electronics store might have some laying around. machines like washing machines, fridges etc. are covered in very thick, hard styrofoam for protection. that's the type you need for this. may be ask around a shop, they'd be happy to help you recycle stuff.