I have had TB and Gulf View in my tank for about 4 years. No pictures of just the rock itself though.
As has already been stated, many different shapes and sizes, some boulder like, some flat, etc...
As far as the plant life goes, I still have a great deal of Halimeda that grows from one rock (has been trimed back many times) Twig alagae on different rocks, coralline algae and Sargassam for about 2 years (died off and didn't come back). The plants/algae that I was able to get off the rocks before they took over the tank

, Dictyota, a small grape caulerpa, Y branch. The algae I still haven't gotten rid of is Valonia (many different species

).
Other life on the rock that is still there, corals- both stony as well as gorgs, 2 varieties of sponges, feather dusters, most likely a crab or two, 2 out of about 8 original oysters, a couple of astreas, 1 rock urchin, 1 chiton and of course bugs and worms.
IME the life that dies the quickest (within a month or two) is chicken liver sponge. In the furture I will scrape this off before I put it into the tank. Barnacles also don't seem to survive for more than 6 months or so. Note: I would be willing to bet a dollar that someone will be right behind me saying they have chicken liver sponge and barnacles that have been in their tanks sense the 60's

.
Anyway, alot of what lives and dies will be dependent on what water conditions the rock goes into. My goal was to have success with gorgs and stonies, another may be interested in filter feeders etc...
Steve