Omegle - Omegle is one of the most popular online chat website allowing user to communicate with anyone without registration.
Pinpon - The ping pong bot for Slack
Bazoocam - Bazoocam is a popular chat website that rapidly connects you with strangers to chat.
PlayPlay.io - Chess and Ping Pong tracking in Slack
Chatrandom - Chatrandom provides medium to users for having chat at random with different users around the globe.
PongUp - The ping pong leaderboard for awesome offices