Normally you end up with a hat and a certificate of participation. I once got a GIS map that showed where it was originally tagged and where I eventually caught it, along with a projected route. Kinda cool.
it was a berkley striper club tag, i emailed fred, in a return email he said he was going to get me the tag info(when where how big etc) and i get a patch....pretty neat.
turns out the fish was tagged on may 27th 2010 off race point cape cod......so wasnt quite as big of a journey as we thought (yet). but its still swimming! still neat to be able to get the info...