Most of us got them back in 2005 when the site was brand new and the decals were being shipped free to promote the site.
Over the years they've held up great and still look brand spankin new. I post an update pic once in a while if I can get one of my fish to hang out near the decal.
Check the first post of the thread and you'll see the year and why it was started.
I know I have put it up a few times before, and it is an old pic, no longer have this tank set up, but here it is with my American Eel, rip. and another with my sea robin, although he was ill at the time of the pic.