My town project has become a bit more ambitious. We've gone from making a town called Hyrule to making all of Hyrule from OOT in-game. I have lots of room for people to help and to join the town, or if you just want to see the progress. Come check it out!
I can't find one either but I did find one where you can showcase stuff. It's not exactlyt what I'd like but it may have to do. You can use a command on an item and throw it down. It can't be picked up or despawn so it floats there till you release it with a command. It'll work if it has to.