Maybe this can help you. It was made for leopard geckos but it might work for a bearded dragon too.
http://www.freewebs.com/herptips/fakerock.htm
>>I want to fix up my bearded dragon cage. I need a strong rockwall that is not a lot of money and is semi-fast and easy to make. Any idea's, tutorials, ect.? Also, I am looking on buiulding my beardie a cage out back so he can soak up the sun. Any tus on that? Links please! Thanks alot!
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>> Yorkshire Terrier (Allie)
>> Bearded Dragon (rebel)
>> Beta Fish (Allan)
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Tim W. My Pictures
0.0.1 Leopard Geckos
0.1.0 Dumeril Boa