Practice Mode Fun

Ever since practice mode has come out, my friends and I have always wanted to go into the mode together and mess around with all the things that you can do. I don't understand why that didn't come with the mode, but I think it would be amazing to be able to go into there with a lobby full of friends (if I had friends) and mess around, or maybe help someone perfect their build, learn a new champ, etc. I know there are custom games, but those are too slow to start and you also have to worry about the other lanes being destroyed my minions if you are in a 1v1 scenario. I think it would be awesome if it would be implemented in the near future.