3D background for leopard geckos - making it climb-proof?

[hughmungus]

Is there something that I could put over a styrofoam background in order to make it so that my leopard geckos can't climb it? Something where it will stay natural looking, but it'll be smooth, almost slippery even, so it can't be climbed.

Anyone know anything? Going to be in a 48x20x20 cage.
Drew

 

[acpart]

I guess if you could seal it with something slippery. Consider taking the background to a craft store and asking them if no one has any good ideas here.

Aliza

 

[hughmungus]

I'm going to make the background, paint it, then cover it with Pond Shield. Should be smooth enough that it can't be climbed.

Drew