+=~=CUBELET WINS=~=+
So, sometimes I have the problem where I go to open a cubelet, but I miss the little pop-up of what I won, and I get quite curious. I was thinking there should be a little chat thing that pops up. If your win is from the Common to the Legendary, only you can see it. If it is a Mythical win, it is displayed to the whole lobby. The chat text will say what you won, the rarity (Mythical, Legendary, Common, etc.), and if you already have it or not. You also can see your previous three wins if you click the "Vanity" rose, then hover over the little cubelet item. In the description it will say only the names of your previous 3 wins.
+=~=PAINTBALL TEAM PICKER=~=+
This is just a simple idea, you take the whole Team Choosing apparatus from SkyWars, EggWars, etc. And put it into the Paintball minigame. Easy, but would make it a lot easier to play with your friends on the same team in the Arcade's Paintball.