Pattinson turns 27 Monday and Stewart got the table imported from England.
"Rob's a normal guy, he wouldn't want a bling watch or a flashy car, so Kristen had a snooker table hand made for him," dailystar.co.uk quoted a source as saying.
"Rob loves a few cans of larger and a game with the lads. She's having it secretly put into their pool outhouse in Los Feliz," the source added.
Spotted: Virat Kohli, Anushka Sharma and other celebs at Mumbai airport
Photos: Salman Khan's 'special friend' Iulia Vantur at a song launch
Photos: Hrithik Roshan, Anushka Sharma, other celebs dazzle at event
In Pictures: Sex scandals involving Indian politicians
Photos: Abhishek Bachchan and Farah Khan at Boman Irani's birthday bash