egg crate/great stuff background
I've seen a lot of people online use egg crate to hold great stuff, or just use great stuff as a background for their tank. Many have painted it with some sort of crafts cement, but some have stuck on plants and such. I'm wondering how people do that because I'd like to do it. People always just say "I put [blah blah blah] on the great stuff" but never say how they got it to stay there. What I'm thinking I want to do is use that cement stuff (with color pigment) to get a nice rock look and then stick moss and some viney plants on it. Any idea how I'd get this done?