One of the better explanations for creating a bigger terrarium plus has a list of suggested plants to use.
Shells, coral and fossils look phenomenal when mixed with additional elements of nature, such as moss, ferns and other greenery. This gorgeous terrarium by DoodleBirdie puts a genuine ammonite fossil on display.
New England Herpetoculture LLC - Vivarium Construction 101
Stunning Waterfall Paludarium: removeable waterfall, rain bar, and fogger. Animals include dart frog, chinese water frog, small fish (white clouds?). gives a quick overview of supplies used. VERY COOL!! :D