I wanna suggest Games. Game Consoles (Bloxstation, X Blox) that you can arrange in front of your TVs. Works similar to playing games at a computer, where your avatar can sit holding a controller with a little animation. But also Pinball Machines, interactive Pool Tables of Various Styles. So that people could build their own Game Rooms and Arcades with games like Ping Pong, Air Hockey, Foosball and a Dartboard. SkiBall would be nice addition. Also Golf with a little putting green, maybe a Ring Toss or Horseshoe game.. Lastly, a Bowling Alley